A vulnerability was found in Umbraco CMS 12.3.6. It has been classified as problematic. Affected is an unknown function of the file /Umbraco/preview/frame?id{} of the component Dashboard. The manipulation of the argument culture leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Failing webhooks logs are available when solution is not in debug mode. Those logs can contain information that is critical.
The password reset component deployed within Umbraco uses the hostname supplied within the request host header when building a password reset URL.See the AppCheck advisory for further information and associated caveats.
Within the Umbraco CMS, a configuration element named "UmbracoApplicationUrl" (or just "ApplicationUrl") is used whenever application code needs to build a URL pointing back to the site. For example, when a user resets their password and the application builds a password reset URL or when the administrator invites users to the site. For Umbraco versions less than, if the Application URL is not specifically configured, the attacker can manipulate this …