It has been discovered that cookies created in the Install Tool are not hardened to be submitted only via HTTP. In combination with other vulnerabilities such as cross-site scripting it can lead to hijacking an active and valid session in the Install Tool.
When using the TYPO3 backend in order to create new backend user accounts, database records containing insecure or empty credentials might be persisted. When the type of user account is changed - which might be entity type or the admin flag for backend users - the backend form is reloaded in order to reflect changed configuration possibilities. However, this leads to persisting the current state as well, which can result …
It has been discovered that mechanisms used for configuration of RequireJS package loading are susceptible to information disclosure. This way a potential attack can retrieve additional information about installed system and third party extensions.
The Install Tool exposes the current TYPO3 version number to non-authenticated users.
Online Media Asset Handling (*.youtube and *.vimeo files) in the TYPO3 backend is vulnerable to denial of service. Putting large files with according file extensions results in high consumption of system resources. This can lead to exceeding limits of the current PHP process which results in a dysfunctional backend component. A valid backend user account or write access on the server system (e.g. SFTP) is needed in order to exploit …
TYPO3’s built-in record registration functionality (aka basic shopping cart) using recs URL parameters is vulnerable to denial of service. Failing to properly ensure that anonymous user sessions are valid, attackers can use this vulnerability in order to create an arbitrary amount of individual session-data records in the database.
Failing to properly encode user input, online media asset rendering (*.youtube and *.vimeo files) is vulnerable to cross-site scripting. A valid backend user account or write access on the server system (e.g. SFTP) is needed in order to exploit this vulnerability.
It has been discovered that t3:// URL handling and typolink functionality are vulnerable to cross-site scripting. Not only regular backend forms are affected but also frontend extensions which use the rendering with typolink.
Failing to properly encode user input, login status display is vulnerable to cross-site scripting in the website frontend. A valid user account is needed in order to exploit this vulnerability - either a backend user or a frontend user having the possibility to modify their user profile. Template patterns that are affected are ###FEUSER_[fieldName]### using system extension felogin
It has been discovered that the output of field validation errors in the Form Framework is vulnerable to cross-site scripting.
Failing to properly encode user input, frontend forms handled by the form framework (system extension “form”) are vulnerable to cross-site scripting.
Failing to properly encode user input, templates using built-in Fluid ViewHelpers are vulnerable to cross-site scripting.
It has been discovered that the output table listing in the “Files” backend module is vulnerable to cross-site scripting when a file extension contains malicious sequences. Access to the file system of the server - either directly or through synchronization - is required to exploit the vulnerability.
Failing to properly encode user input, notifications shown in modal windows in the TYPO3 backend are vulnerable to cross-site scripting. A valid backend user account is needed in order to exploit this vulnerability.
It has been discovered that request handling in Extbase can be vulnerable to insecure deserialization. User submitted payload has to be signed with a corresponding HMAC-SHA1 using the sensitive TYPO3 encryptionKey as secret - invalid or unsigned payload is not deserialized. However, since sensitive information could have been leaked by accident (e.g. in repositories or in commonly known and unprotected backup files), there is the possibility that attackers know the …
It has been discovered that backend users having limited access to specific languages are capable of modifying and creating pages in the default language which actually should be disallowed. A valid backend user account is needed in order to exploit this vulnerability.
Due to missing file extensions in $GLOBALS['TYPO3_CONF_VARS']['BE'][‘fileDenyPattern’], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability. Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages). The file extension *.shtml is …
When users change their password existing sessions for that particular user account are not revoked. A valid backend or frontend user account is required in order to make use of this vulnerability.
It has been discovered session data of properly authenticated and logged in frontend users is kept and transformed into an anonymous user session during the logout process. This way the next user using the same client application gains access to previous session data.
TYPO3 uses the package swiftmailer/swiftmailer for mail actions. This package is known to be vulnerable to Remote Code Execution.
It has been discovered that login failures have been logged on the default stream with log level "warning" including plain-text user credentials.
It has been discovered backend users not having read access to specific pages still could see them in the page tree which actually should be disallowed. A valid backend user account is needed in order to exploit this vulnerability.
The element information component used to display properties of a certain record is susceptible to information disclosure. The list of references from or to the record is not properly checked for the backend user’s permissions. A valid backend user account is needed in order to exploit this vulnerability.
Failing to properly encode information from external sources, language pack handling in the install tool is vulnerable to cross-site scripting.
It has been discovered that the Import/Export module is susceptible to broken access control. Regular backend users have access to import functionality which usually only is available to admin users or users having User TSconfig setting options.impexp.enableImportForNonAdminUser explicitly enabled. Database content to be imported however was correctly checked against users’ permissions and not affected. However it was possible to upload files by-passing restrictions of the file abstraction layer (FAL) - …
Backend API configuration using Page TSconfig is vulnerable to arbitrary code execution and cross-site scripting. TSconfig fields of page properties in backend forms can be used to inject malicious sequences. Field tsconfig_includes is vulnerable to directory traversal leading to same scenarios as having direct access to TSconfig settings. A valid backend user account having access to modify values for fields pages.TSconfig and pages.tsconfig_includes is needed in order to exploit this …
Failing to properly escape user input, the frontend login component is vulnerable to SQL Injection. A valid frontend user account is needed to exploit this vulnerability.
The workspace/ version preview link created by a privileged (backend) user could be abused to obtain certain editing permission, if the admin panel is configured to be shown. A valid preview link is required to exploit this vulnerability.
Failing to properly dissociate system related configuration from user generated configuration, the Form Framework (system extension "form") is vulnerable to SQL injection and Privilege Escalation. Basically instructions can be persisted to a form definition file that were not configured to be modified - this applies to definitions managed using the form editor module as well as direct file upload using the regular file list module. A valid backend user account …
Extbase request handling fails to implement a proper access check for requested controller/ action combinations, which makes it possible for an attacker to execute arbitrary Extbase actions by crafting a special request. To successfully exploit this vulnerability, an attacker must have access to at least one Extbase plugin or module action in a TYPO3 installation. The missing access check inevitably leads to information disclosure or remote code execution, depending on …
Failing to properly validate incoming import data, the Import/Export component is susceptible to insecure unserialize. To exploit this vulnerability a valid backend user account is needed.
Failing to properly validate incoming data, the suggest wizard is susceptible to insecure unserialize. To exploit this vulnerability a valid backend user account is needed.
It has been discovered that the Form Framework (system extension "form") is vulnerable to Insecure Deserialization when being used with the additional PHP PECL package “yaml”, which is capable of unserializing YAML contents to PHP objects. A valid backend user account as well as having PHP setting "yaml.decode_php" enabled is needed to exploit this vulnerability (which is the default value according to PHP documentation).
Phar files (formerly known as "PHP archives") can act als self extracting archives which leads to the fact that source code is executed when Phar files are invoked. The Phar file format is not limited to be stored with a dedicated file extension - "bundle.phar" would be valid as well as "bundle.txt" would be. This way, Phar files can be obfuscated as image or text file which would not be …
Failing to properly check user permission on file storages, editors could gain knowledge of protected storages and its folders as well as using them in a file collection being rendered in the frontend. A valid backend user account is needed to exploit this vulnerability.
HTTP requests being performed using the TYPO3 API expose the specific TYPO3 version to the called endpoint.
The TYPO3 backend module stores the username of an authenticated backend user in its cache files. By guessing the file path to the cache files it is possible to receive valid backend usernames.
Failing to properly encode user input, backend forms are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability.
Failing to properly encode user input, several places of the TYPO3 CMS are vulnerable to Cross-Site Scripting.
Failing to properly encode user input, some backend components are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability.
Failing to properly encode user input, some backend components are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability.
Make sure to not expose the vendor directory to the publicly accessible document root. In composer managed installation, make sure to configure a dedicated web folder. In general it is recommended to not expose the complete typo3_src sources folder in the document root.
All link fields within the TYPO3 installation are vulnerable to Cross-Site Scripting as authorized editors can insert data commands by using the url scheme "data:".
Failing to properly encode user input, the page module is vulnerable to Cross-Site Scripting. A valid backend user account with permissions to edit plugins is needed to exploit this vulnerability.
Links with a valid cHash argument lead to newly generated page cache entries. Because the cHash is not bound to a specific page, attackers could use valid cHash arguments for multiple pages, leading to additional useless page cache entries. Depending on the number of pages in the system and the number of available valid links with a cHash, attackers could add a considerable amount of additional cache entries, which in …
Due to late TCA initialization the authentication service fails to restrict frontend user according to the validation rules. Therefore it is possible to authenticate restricted (e.g. disabled) frontend users.
It has been discovered that TYPO3’s Salted Password system extension (which is a mandatory system component) is vulnerable to Authentication Bypass when using hashing methods which are related by PHP class inheritance. In standard TYPO3 core distributions stored passwords using the blowfish hashing algorithm can be overridden when using MD5 as the default hashing algorithm by just knowing a valid username. Per default the Portable PHP hashing algorithm (PHPass) is …
The default authentication service misses to invalidate empty strings as password. Therefore it is possible to authenticate backend and frontend users without password set in the database. Note: TYPO3 does not allow to create user accounts without a password. Your TYPO3 installation might only be affected if there is a third party component creating user accounts without password by directly manipulating the database.
Due to a missing file extension in the fileDenyPattern, backend user are allowed to upload .pht files which can be executed in certain web server setups. The new default fileDenyPattern is the following, which might have been overridden in the TYPO3 Install Tool. .(php[3-7]?|phpsh|phtml|pht)(..)?$|^.htaccess$
All XML processing within the TYPO3 CMS are vulnerable to XEE processing. This can lead to load internal and/or external (file) content within an XML structure. Furthermore it is possible to inject arbitrary files for an XML Denial of Service attack. For more information on that topic see https://www.owasp.org/index.php/XML_External_Entity_(XXE)_Processing.
Failing to properly validate user input, the form component is susceptible to Arbitrary File Disclosure. A valid backend user account is needed to exploit this vulnerability. Only forms are vulnerable, which contain upload fields.
Due to an oversized maximum result limit, TYPO3 component Indexed Search is susceptible to a Denial of Service attack.
Failing to properly encode user input, the CSS styled content component is susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.
Failing to properly encode incoming data, the bookmark toolbar is susceptible to Cross-Site Scripting.
A flaw in the database escaping API results in a SQL injection vulnerability when extension dbal is enabled and configured for MySQL passthrough mode in its extension configuration. All queries which use the DatabaseConnection::sql_query are vulnerable, even if arguments were properly escaped with DatabaseConnection::quoteStr beforehand.
Failing to properly encode editor input, several frontend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML.
The flashplayer misses to validate flash and image files. Therefore it is possible to embed flash videos from external domains.
Failing to sanitize content from editors, the link validator component is susceptible to Cross-Site Scripting. A valid editor account with access to content which is scanned by the link validator component is required to exploit this vulnerability.
Failing to sanitize content from editors, the legacy form component is susceptible to Cross-Site Scripting. A valid editor account with access to a form content element is required to exploit this vulnerability.
Failing to sanitize content from unauthenticated website visitors, the form component is susceptible to Cross-Site Scripting.
Failing to properly encode user input, several backend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.
Failing to properly encode editor input, the search result view of indexed_search is susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML.
A request URL with arbitrary arguments, but still pointing to the home page of a TYPO3 installation can be cached if the configuration option config.prefixLocalAnchors is used with the values "all" or "cached". The impact of this vulnerability is that unfamiliar looking links to the home page can end up in the cache, which leads to a reload of the page in the browser when section links are followed by …
It has been discovered, that editors with access to file meta data table could change, create or delete metadata of files which are not within their file mounts.
It has been discovered, that editors with access to the file list module could list all files names and folder names in the root directory of a TYPO3 installation. Modification of files, listing further nested directories or retrieving file contents was not possible. A valid backend user account is needed to exploit this vulnerability.
It has been discovered, that calling a PHP script which is delivered with TYPO3 for testing purposes, discloses the absolute server path to the TYPO3 installation.
It has been discovered that TYPO3 is susceptible to session fixation. If a user authenticates while anonymous session data is present, the session id is not changed. This makes it possible for attackers to generate a valid session id, trick users into using this session id (e.g. by leveraging a different Cross-Site Scripting vulnerability) and then maybe getting access to an authenticated session.
All link fields within the TYPO3 installation are vulnerable to Cross-Site Scripting as authorized editors can insert javascript commands by using the url scheme javascript:.
It has been discovered that link tags generated by typolink functionality in the website's frontend are vulnerable to cross-site scripting - values being assigned to HTML attributes have not been parsed correctly. A valid backend user account is needed to exploit this vulnerability. As second and separate vulnerability in the filelist module of the backend user interface has been referenced with this advisory as well. Error messages being shown after …
The backend login has a basic brute force protection implementation which pauses for 5 seconds if wrong credentials are given. This pause however could be bypassed by forging a special request, making brute force attacks on backend editor credentials more feasible.
The swiftmailer library in use allows to execute arbitrary shell commands if the "From" header comes from a non-trusted source and no "Return-Path" is configured. Affected are only TYPO3 installation the configuration option $GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport'] is set to "sendmail". Installations with the default configuration are not affected.
Failing to properly validate the HTTP host-header TYPO3 CMS is susceptible to host spoofing. TYPO3 uses the HTTP host-header to generate absolute URLs in several places like 404 handling, http(s) enforcement, password reset links and many more. Since the host header itself is provided by the client it can be forged to any value, even in a name based virtual hosts environment. A blog post describes this problem in great …
Due to a too loose type check in an API method, attackers could bypass the directory traversal check by providing an invalid UTF-8 encoding sequence.
Improper Neutralization in typo3/cms.
In TYPO3 11.5.24, the filelist component allows attackers (who have access to the administrator panel) to read arbitrary files via directory traversal in the baseuri field, as demonstrated by POST /typo3/record/edit with ../../../ in data[sys_file_storage]*[data][sDEF][lDEF][basePath][vDEF].
TYPO3 is a free and open source Content Management Framework released under the GNU General Public License. In affected versions the TYPO3 core component GeneralUtility::getIndpEnv() uses the unfiltered server environment variable PATH_INFO, which allows attackers to inject malicious content. In combination with the TypoScript setting config.absRefPrefix=auto, attackers can inject malicious HTML code to pages that have not been rendered and cached, yet. As a result, injected values would be cached …
TYPO3 is an open source PHP based web content management system. In versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1, requesting invalid or non-existing resources via HTTP triggers the page error handler, which again could retrieve content to be shown as an error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the …
An issue was discovered in the fe_change_pwd (aka Change password for frontend users) extension before 2.0.5, and 3.x before 3.0.3, for TYPO3. The extension fails to revoke existing sessions for the current user when the password has been changed.
TYPO3 is an open source PHP based web content management system. In versions prior to 10.4.33, 11.5.20, and 12.1.1, When users reset their password using the corresponding password recovery functionality, existing sessions for that particular user account were not revoked. This applied to both frontend user sessions and backend user sessions. This issue is patched in versions 10.4.33, 11.5.20, 12.1.1.
TYPO3 is an open source PHP based web content management system. Versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1 are subject to Sensitive Information Disclosure. Due to the lack of handling user-submitted YAML placeholder expressions in the site configuration backend module, attackers could expose sensitive internal information, such as system configuration or HTTP request messages of other website visitors. A valid backend user account having administrator privileges is needed to …
TYPO3 is an open source PHP based web content management system. Versions prior to 8.7.49, 9.5.38, 10.4.33, 11.5.20, and 12.1.1 is vulnerable to Code Injection. Due to the lack of separating user-submitted data from the internal configuration in the Form Designer backend module, it is possible to inject code instructions to be processed and executed via TypoScript as PHP code. The existence of individual TypoScript instructions for a particular form …
TYPO3 is an open source PHP based web content management system. In versions prior to 8.7.49, 9.5.38, 10.4.33, 11.5.20, and 12.1.1 TYPO3 is vulnerable to Improper Authentication. Restricting frontend login to specific users, organized in different storage folders (partitions), can be bypassed. A potential attacker might use this ambiguity in usernames to get access to a different account - however, credentials must be known to the adversary. This issue is …
HTML sanitizer is written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. In versions prior to 1.5.0 or 2.1.1, malicious markup used in a sequence with special HTML CDATA sections cannot be filtered and sanitized due to a parsing issue in the upstream package masterminds/html5. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. The upstream package masterminds/html5 provides HTML raw text elements …
The typo3/html-sanitizer package is an HTML sanitizer, written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. Due to a parsing issue in the upstream package masterminds/html5, malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows for a bypass of the cross-site scripting mechanism of typo3/html-sanitizer. This issue has been addressed in versions 1.0.7 and 2.0.16 …
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that observing response time during user authentication (backend and frontend) can be used to distinguish between existing and non-existing user accounts. Extension authors of 3rd party TYPO3 extensions providing a custom authentication service should check if the extension is affected by the described problem. Affected extensions must implement new MimicServiceInterface::mimicAuthUser, …
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that the FileDumpController (backend and frontend context) is vulnerable to cross-site scripting when malicious files are displayed using this component. A valid backend user account is needed to exploit this vulnerability. Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix the problem. There are …
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that the f:asset.css view helper is vulnerable to cross-site scripting when user input is passed as variables to the CSS. Update to TYPO3 version 10.4.32 or 11.5.16 that fix the problem. There are no known workarounds for this issue.
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that the expiration time of a password reset link for TYPO3 backend users has never been evaluated. As a result, a password reset link could be used to perform a password reset even if the default expiry time of two hours has been exceeded. Update to TYPO3 version 10.4.32 or …
TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as an error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits …
TYPO3 is an open source web content management system. Prior to versions 9.5.34 ELTS, 10.4.29, and 11.5.11, Admin Tool sessions initiated via the TYPO3 backend user interface had not been revoked even if the corresponding user account was degraded to lower permissions or disabled completely. This way, sessions in the admin tool theoretically could have been prolonged without any limit. TYPO3 versions 9.5.34 ELTS, 10.4.29, and 11.5.11 contain a fix …
TYPO3 is an open source web content management system. Prior to versions 9.5.34 ELTS, 10.4.29, and 11.5.11, user submitted content was used without being properly encoded in HTML emails sent to users. The actually affected components were mail clients used to view those messages. TYPO3 versions 9.5.34 ELTS, 10.4.29, and 11.5.11 contain a fix for the problem.
TYPO3 is an open source web content management system. Prior to versions 8.7.47 ELTS, 9.5.34 ELTS, 10.4.29, and 11.5.11, the Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability. TYPO3 versions 8.7.47 ELTS, 9.5.34 ELTS, 10.4.29, and 11.5.11 contain a fix for the problem.
TYPO3 is an open source web content management system. Prior to versions 7.6.57 ELTS, 8.7.47 ELTS, 9.5.34 ELTS, 10.4.29, and 11.5.11, the export functionality fails to limit the result set to allowed columns of a particular database table. This way, authenticated users can export internal details of database tables they already have access to. TYPO3 versions 7.6.57 ELTS, 8.7.47 ELTS, 9.5.34 ELTS, 10.4.29, 11.5.11 fix the problem described above. In …
TYPO3 is an open source web content management system. Prior to versions 7.6.57 ELTS, 8.7.47 ELTS, 9.5.34 ELTS, 10.4.29, and 11.5.11, system internal credentials or keys (e.g. database credentials) can be logged as plaintext in exception handlers, when logging the complete exception stack trace. TYPO3 versions 7.6.57 ELTS, 8.7.47 ELTS, 9.5.34 ELTS, 10.4.29, 11.5.11 contain a fix for the problem.
The Content Editing Wizards component in TYPO3 4.5.0 through 4.5.31, 4.7.0 through 4.7.16, 6.0.0 through 6.0.11, and 6.1.0 through 6.1.6 allows remote authenticated backend users to unserialize arbitrary PHP objects, delete arbitrary files, and possibly have other unspecified impacts via an unspecified parameter, related to a "missing signature."
The Content Editing Wizards component in TYPO3 4.5.0 through 4.5.31, 4.7.0 through 4.7.16, 6.0.0 through 6.0.11, and 6.1.0 through 6.1.6 does not check permissions, which allows remote authenticated editors to read arbitrary TYPO3 table columns via unspecified parameters.
The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 does not properly compare certain hash values during access-control decisions, which allows remote attackers to read arbitrary files via unspecified vectors.
The Backend History Module in TYPO3 4.5.x before 4.5.21, 4.6.x before 4.6.14, and 4.7.x before 4.7.6 does not properly restrict access, which allows remote authenticated editors to read the history of arbitrary records via a crafted URL.
Auth/Yadis/XML.php in PHP OpenID Library 2.2.2 and earlier allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory consumption) via XRDS data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.
SQL injection vulnerability in the Backend History module in TYPO3 4.5.x before 4.5.21, 4.6.x before 4.6.14, and 4.7.x before 4.7.6 allows remote authenticated backend users to execute arbitrary SQL commands via unspecified vectors.
The Extbase Framework in TYPO3 4.6.x through 4.6.6, 4.7, and 6.0 unserializes untrusted data, which allows remote attackers to unserialize arbitrary objects and possibly execute arbitrary code via vectors related to "a missing signature (HMAC) for a request argument."
Cross-site scripting (XSS) vulnerability in the Exception Handler in TYPO3 4.4.x before 4.4.15, 4.5.x before 4.5.15, 4.6.x before 4.6.8, and 4.7 allows remote attackers to inject arbitrary web script or HTML via exception messages.
Multiple cross-site scripting (XSS) vulnerabilities in the backend in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allow remote authenticated backend users to inject arbitrary web script or HTML via unspecified vectors.
Cross-site scripting (XSS) vulnerability in the tree render API (TCA-Tree) in the Backend API in TYPO3 4.5.x before 4.5.21, 4.6.x before 4.6.14, and 4.7.x before 4.7.6 allows remote authenticated backend users to inject arbitrary web script or HTML via unspecified vectors.
Incomplete block list vulnerability in the t3lib_div::quoteJSvalue API function in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain HTML5 JavaScript events.
Multiple cross-site scripting (XSS) vulnerabilities in the Backend component in TYPO3 4.4.0 through 4.4.13, 4.5.0 through 4.5.13, 4.6.0 through 4.6.6, 4.7, and 6.0 allow remote authenticated backend users to inject arbitrary web script or HTML via unspecified vectors.
Multiple cross-site scripting (XSS) vulnerabilities in unspecified backend components in TYPO3 6.2.x before 6.2.16 and 7.x before 7.6.1 allow remote authenticated editors to inject arbitrary web script or HTML via unknown vectors.
Cross-site scripting (XSS) vulnerability in the Install Tool in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Cross-site scripting (XSS) vulnerability in the function menu API in TYPO3 4.5.x before 4.5.21, 4.6.x before 4.6.14, and 4.7.x before 4.7.6 allows remote authenticated backend users to inject arbitrary web script or HTML via unspecified vectors.
Multiple cross-site scripting (XSS) vulnerabilities in Content Editing Wizards in TYPO3 4.5.x before 4.5.32, 4.7.x before 4.7.17, 6.0.x before 6.0.12, 6.1.x before 6.1.7, and the development versions of 6.2 allow remote authenticated users to inject arbitrary web script or HTML via unspecified parameters.
Cross-site scripting (XSS) vulnerability in the Backend History module in TYPO3 4.5.x before 4.5.21, 4.6.x before 4.6.14, and 4.7.x before 4.7.6 allows remote authenticated backend users to inject arbitrary web script or HTML via unspecified vectors.
The frontend rendering component in TYPO3 4.5.x before 4.5.39, 4.6.x through 6.2.x before 6.2.9, and 7.x before 7.0.2, when config.prefixLocalAnchors is set and using a homepage with links that only contain anchors, allows remote attackers to change URLs to arbitrary domains for those links via unknown vectors.
The t3lib_div::RemoveXSS API method in TYPO3 4.4.0 through 4.4.13, 4.5.0 through 4.5.13, 4.6.0 through 4.6.6, 4.7, and 6.0 allows remote attackers to bypass the cross-site scripting (XSS) protection mechanism and inject arbitrary web script or HTML via non printable characters.
The frontend rendering component in TYPO3 4.5.x before 4.5.39, 4.6.x through 6.2.x before 6.2.9, and 7.x before 7.0.2, when config.prefixLocalAnchors is set to all or cached, allows remote attackers to have an unspecified impact (possibly resource consumption) via a "Cache Poisoning" attack using a URL with arbitrary arguments, which triggers a reload of the page.
The configuration module in the backend in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to obtain the encryption key via unspecified vectors.
Multiple cross-site scripting (XSS) vulnerabilities in Flowplayer Flash before 3.2.17, as used in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2, allow remote attackers to inject arbitrary web script or HTML by (1) providing a crafted playerId or (2) referencing an external domain, a related issue to CVE-2013-7342.
Multiple cross-site scripting (XSS) vulnerabilities in the backend user interface in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alpha1 allow remote attackers to inject arbitrary web script or HTML via unspecified fields.
The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to execute arbitrary commands via a crafted filename containing shell metacharacters, which is not properly handled by the command-line indexer.
Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.
It was found that Typo3 Core versions 4.5.0 - 4.5.5 uses prepared statements that, if the parameter values are not properly replaced, could lead to a SQL Injection vulnerability. This issue can only be exploited if two or more parameters are bound to the query and at least two come from user input.
Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to inject arbitrary web script or HTML via the tcemain flash message.
Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to inject arbitrary web script or HTML via the browse_links wizard.
Cross-site Scripting (XSS) in TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to inject arbitrary web script or HTML via the RemoveXSS function.
TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to delete arbitrary files on the webserver.
TYPO3 before 4.4.9 and 4.5.x before 4.5.4 does not apply proper access control on ExtDirect calls which allows remote attackers to retrieve ExtDirect endpoint services.
TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.
TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to extract arbitrary information from the TYPO3 database.
TYPO3 before 4.5.4 allows Information Disclosure in the backend.
TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows Information Disclosure on the backend.
PHP through 7.0.8 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, as demonstrated by (1) an application that makes a getenv('HTTP_PROXY') call or …
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that TYPO3 CMS is susceptible to host spoofing due to improper validation of the HTTP Host header.
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that the new TYPO3 v11 feature that allows users to create and share deep links in the backend user interface is vulnerable to cross-site-request-forgery.
TYPO3 is an open source PHP based web content management system released under the GNU GPL. sanitize and encode malicious rich-text content, the content rendering process in the website frontend is vulnerable to cross-site scripting. Corresponding rendering instructions via TypoScript functionality HTMLparser does not consider all potentially malicious HTML tag & attribute combinations per default. In default scenarios, a valid backend user account is needed to exploit this vulnerability. In …
TYPO3 is an open source PHP based web content management system. User credentials may been logged as plain-text. This occurs when explicitly using log level debug, which is not the default configuration. TYPO3 contain a patch for this vulnerability.
TYPO3 contains a cross-site scripting vulnerability. When Page TSconfig settings are not properly encoded, corresponding page preview module (Web>View) is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 contain a patch for this issue.
TYPO3 contains a cross-site scripting vulnerability. When error messages are not properly encoded, the components QueryGenerator and QueryView are vulnerable to both reflected and persistent cross-site scripting. A valid backend user account having administrator privileges is needed to exploit this vulnerability. TYPO3 contain a patch for this issue.
TYPO3 contains a cross-site scripting vulnerability. When settings for backend layouts are not properly encoded, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 contain a patch for this vulnerability.
Login Handling is susceptible to open redirection which allows attackers redirecting to arbitrary content, and conducting phishing attacks. No authentication is required in order to exploit this vulnerability.
Due to the lack of ensuring file extensions belong to configured allowed mime-types, attackers can upload arbitrary data with arbitrary file extensions - however, default fileDenyPattern successfully blocked files like .htaccess or malicious.php. Additionally, UploadedFileReferenceConverter transforming uploaded files into proper FileReference domain model objects handles possible file uploads for other extensions as well - given those extensions use the Extbase MVC framework, make use of FileReference items in their direct …
Due to improper input validation, attackers can by-pass restrictions of predefined options and submit arbitrary data in the Form Designer backend module of the Form Framework. In the default configuration of the Form Framework this allows attackers to explicitly allow arbitrary mime-types for file uploads - however, default fileDenyPattern successfully blocked files like .htaccess or malicious.php. Besides that, attackers can persist those files in any writable directory of the corresponding …
Content elements of type menu are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability.
Database fields used as descriptionColumn are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability.
The Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability.
User session identifiers are stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - for example SQL injection in any other component of the system.
Requesting invalid or non-existing resources via HTTP, triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded.
TYPO3 is an open source PHP based web content management system. In TYPO3 from, and, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2, the processing of XML external entities is disabled per default - and cannot be exploited. …
TYPO3 is an open source PHP based web content management system. In TYPO3 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. Update to TYPO3 that fix the problem described.
TYPO3 is an open source PHP based web content management system. In TYPO3 user session identifiers were stored in cleartext - without processing with additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. Update to TYPO3 that fix the problem described.
TYPO3 Fluid Engine (package typo3fluid/fluid)is vulnerable to cross-site scripting when making use of the ternary conditional operator in templates like{showFullName ? fullName : defaultValue}. Updated versions of this package are bundled in following TYPO3 (typo3/cms-core) versions as well: TYPO3 v8.7.25 (using typo3fluid/fluidv2.5.4) and TYPO3 v9.5.6 (usingtypo3fluid/fluid` v2.6.1).
In TYPO3 CMS, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1), it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, …
In TYPO3 CMS, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. This allows to inject arbitrary data having a valid cryptographic message authentication code (HMAC-SHA1) and can lead to various attack chains including potential privilege escalation, insecure deserialization & remote code execution. The overall severity of this vulnerability is high based on mentioned attack chains and the requirement of having a valid …
Calling unserialize() on malicious user-submitted content can lead to modification of dynamically-determined object attributes and result in triggering deletion of an arbitrary directory in the file system, if it is writable for the web server. It can also trigger message submission via email using the identity of the website (mail relay). Another insecure deserialization vulnerability is required to actually exploit mentioned aspects.
It has been discovered that backend user settings (in $BE_USER->uc) are vulnerable to insecure deserialization. In combination with vulnerabilities of third party components, this can lead to remote code execution. A valid backend user account is needed to exploit this vulnerability.
In TYPO3 CMS, it has been discovered that the backend user interface and install tool are vulnerable to a same-site request forgery. A backend user can be tricked into interacting with a malicious resource an attacker previously managed to upload to the web server. Scripts are then executed with the privileges of the victims' user session. In a worst-case scenario, new admin users can be created which can directly be …
It has been discovered that time-based attacks can be used with the password reset functionality for backend users. This allows an attacker to mount user enumeration based on email addresses assigned to backend user accounts.
It has been discovered that HTML placeholder attributes containing data of other database records are vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability.
It has been discovered that link tags generated by the typolink functionality are vulnerable to cross-site scripting; properties being assigned as HTML attributes have not been parsed correctly.
In Symfony before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, it is possible to cache objects that may contain bad user input. On serialization or unserialization, this could result in the deletion of files that the current user has access to. This is related to symfony/cache and symfony/phpunit-bridge.
svg.swf in TYPO3 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
Because escaping of user-submitted content is mishandled, the class QueryGenerator is vulnerable to SQL injection. Exploitation requires having the system extension ext:lowlevel installed, and a valid backend user who has administrator privileges.
It has been discovered that the extraction of manually uploaded ZIP archives in Extension Manager is vulnerable to directory traversal. Admin privileges are required in order to exploit this vulnerability.
It has been discovered that the classes QueryGenerator and QueryView are vulnerable to insecure deserialization. One exploitable scenario requires having the system extension ext:lowlevel (Backend Module DB Check) installed, with a valid backend user who has administrator privileges. The other exploitable scenario requires having the system extension ext:sys_action installed, with a valid backend user who has limited privileges.
TYPO3 allows Deserialization of Untrusted Data.
TYPO3 allows XSS.
Security Misconfiguration in Frontend Session Handling.
Insecure Deserialization in TYPO3 CMS.
Information Disclosure in Backend User Interface.
Broken Access Control in Import Module.
Possible deserialization side-effects in symfony/cache.
Cross-Site Scripting in Link Handling.
Arbitrary Code Execution and Cross-Site Scripting in Backend API.
TYPO3 allows remote code execution because it does not properly configure the applications used for image processing, as demonstrated by ImageMagick or GraphicsMagick.
Security Misconfiguration in User Session Handling.
Information Disclosure in Page Tree.
Information Disclosure in User Authentication.
Cross-Site Scripting in Fluid Engine.
Possible Arbitrary Code Execution in Image Processing.
Security Misconfiguration for Backend User Accounts.
Information Disclosure of Installed Extensions.
Broken Access Control in Localization Handling.
Cross-Site Scripting in Language Pack Handling.
Cross-Site Scripting in Fluid ViewHelpers.
Cross-Site Scripting in Bootstrap CSS toolkit.
Cross-Site Scripting in Form Framework.
Arbitrary Code Execution via File List Module.
Denial of Service in Online Media Asset Handling.
Denial of Service in Frontend Record Registration.
Security Misconfiguration in Install Tool Cookie.
Information Disclosure in Install Tool.
Cross-Site Scripting in Frontend User Login.
Cross-Site Scripting in Backend Modal Component.
Cross-Site Scripting in CKEditor.
Cross-Site Scripting in Online Media Asset Rendering.
CKEditor 4.x before 4.11.0 allows user-assisted XSS involving a source-mode paste.
In Bootstrap before 4.1.2, XSS is possible in the data-target property of scrollspy.
Privilege Escalation & SQL Injection in TYPO3 CMS.
Insecure Deserialization & Arbitrary Code Execution in TYPO3 CMS.
Insecure Deserialization in TYPO3 CMS.
Authentication Bypass in TYPO3 CMS.
The page module in TYPO3 is vulnerable to XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
Unrestricted File Upload vulnerability in the fileDenyPattern in sysext/core/Classes/Core/SystemEnvironmentBuilder.
Failing to properly encode user input, backend forms are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability.
Information Disclosure in TYPO3 CMS.
HTTP requests being performed using the TYPO3 API expose the specific TYPO3 version to the called endpoint.
Information Disclosure in TYPO3 CMS.
Failing to properly check user permission on file storages, editors could gain knowledge of protected storages and its folders as well as using them in a file collection being rendered in the frontend. A valid backend user account is needed to exploit this vulnerability.
XSS in TYPO3 CMS Backend.
Arbitrary Code Execution in TYPO3 CMS.
Due to a missing file extension in the fileDenyPattern, backend user are allowed to upload *.pht files which can be executed in certain web server setups.
TYPO3 sends an HTTP request to an index.php?loginProvider URI in cases with an HTTP Referer, which allows remote attackers to obtain sensitive cleartext information by sniffing the network and reading the userident and username fields.
TYPO3 is vulnerable to Cross-Site Scripting.
Authentication Bypass in TYPO3 Frontend.
XSS in TYPO3 CMS.
Due to late TCA initialization the authentication service fails to restrict frontend user according to the validation rules. Therefore it is possible to authenticate restricted (e.g. disabled) frontend users.
TYPO3 is vulnerable to Cross-Site Scripting.
Remote Code Execution in third party library swiftmailer.
Path Traversal in TYPO3 Core.
Due to a too loose type check in an API method, attackers could bypass the directory traversal check by providing an invalid UTF-8 encoding sequence.
Failing to properly validate incoming data, the suggest wizard is susceptible to insecure unserialize. To exploit this vulnerability a valid backend user account is needed.
Insecure Unserialize in TYPO3 Backend.
Failing to properly encode user input, the page module is vulnerable to Cross-Site Scripting. A valid backend user account with permissions to edit plugins is needed to exploit this vulnerability.
Links with a valid cHash argument lead to newly generated page cache entries. Because the cHash is not bound to a specific page, attackers could use valid cHash arguments for multiple pages, leading to additional useless page cache entries. Depending on the number of pages in the system and the number of available valid links with a cHash, attackers could add a considerable amount of additional cache entries, which in …
SQL Injection in TYPO3 Frontend Login.
Information Disclosure in TYPO3 Backend.
Environment Variable Injection.
Insecure Unserialize in TYPO3 Import/Export.
Cross-Site Scripting in third party library mso/idna-convert.
Cross-Site Scripting in TYPO3 Backend.
Cross-Site Scripting vulnerability in typolinks.
Cache Flooding in TYPO3 Frontend.
XSS in TYPO3 Backend.
Extbase request handling fails to implement a proper access check for requested controller/ action combinations, which makes it possible for an attacker to execute arbitrary Extbase actions by crafting a special request. To successfully exploit this vulnerability, an attacker must have access to at least one Extbase plugin or module action in a TYPO3 installation. The missing access check inevitably leads to information disclosure or remote code execution, depending on …
Missing Access Check in TYPO3 CMS.
Arbitrary File Disclosure in Form Component.
Privilege Escalation in TYPO3 CMS.
Authentication Bypass in TYPO3 CMS.
Cross-Site Scripting in TYPO3 Backend.
Denial of Service attack possibility in TYPO3 component Indexed Search.
XML External Entity (XXE) Processing in TYPO3 Core.
Cross-Site Scripting in TYPO3 component Backend.
Cross-Site Scripting in TYPO3 component CSS styled content.
SQL Injection in dbal.
Cross-Site Scripting in form component.
Cross-Site Scripting in link validator component.
Cross-Site Scripting in legacy form component.
Failing to properly encode editor input, several frontend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML.
Failing to properly encode user input, several backend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.
All link fields within the TYPO3 installation are vulnerable to Cross-Site Scripting as authorized editors can insert javascript commands by using the url scheme "javascript:".
Failing to properly encode editor input, the search result view of indexed_search is susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML.
TYPO3 is susceptible to Cross-Site Flashing.
Cross-Site Scripting in TYPO3 component Indexed Search.
Cross-Site Scripting vulnerability in typolinks.
Multiple Cross-Site Scripting vulnerabilities in TYPO3 backend.
Multiple Cross-Site Scripting vulnerabilities in frontend.
The flashplayer misses to validate flash and image files. Therefore it is possible to embed flash videos from external domains.
It has been discovered, that it is possible to forge a link to a backend module, which contains a JavaScript payload. This JavaScript is executed, if an authenticated editor with access to the module follows the link that, is tricked to click on a certain HTML target. Because TYPO3 include a secret token unknown to an attacker in every URL, an exploit would not be feasible for these versions.
It has been discovered, that calling a PHP script which is delivered with TYPO3 for testing purposes, discloses the absolute server path to the TYPO3 installation.
Frontend: Unauthenticated Path Disclosure.
Frontend login Session Fixation.
Information Disclosure possibility exploitable by Editors.
Brute Force Protection Bypass in backend login.
Access bypass when editing file metadata.
Cross-Site Scripting exploitable by Editors.
Cross-Site Scripting in 3rd party library Flowplayer.
Possible link spoofing on the homepage when anchors are used.
Possible cache poisining on the homepage when anchors are used.
Denial of Service in OpenID System Extension.
Arbitrary Shell Execution in Swiftmailer library.
The query caching functionality in the Extbase Framework does not properly validate group permissions, which allows remote authenticated users to read arbitrary queries via unspecified vectors.
TYPO3 allows remote attackers to have unspecified impact via a crafted HTTP Host header, related to Host Spoofing.
The Authentication component in TYPO3 does not properly invalidate timed out user sessions, which allows remote attackers to bypass authentication via unspecified vectors.
Multiple cross-site scripting (XSS) vulnerabilities in unspecified backend components in TYPO3 allow remote authenticated editors to inject arbitrary web script or HTML via unknown parameters.
The ExtJS JavaScript framework that is shipped with TYPO3 is susceptible to XSS.