If an issue references a note that belongs to another issue that the user doesn't have access to, then it gets hyperlinked. Clicking on the link gives an access denied error as expected, yet some information remains available via the link, link label, and tooltip.
Improper escaping of a custom field's name allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript when: resolving or closing issues (bug_change_status_page.php) belonging to a project linking said custom field viewing issues (view_all_bug_page.php) when the custom field is displayed as a column printing issues (print_all_bug_page.php) when the custom field is displayed as a column
Insufficient access control in the registration and password reset process allows an attacker to reset another user's password and takeover their account, if the victim has an incomplete request pending. The exploit is only possible while the verification token is valid, i.e for 5 minutes after the confirmation URL sent by e-mail has been opened, and the user did not complete the process by updating their password. A brute-force attack …
MantisBT is an open source issue tracker. Prior to version 2.26.1, an unauthenticated attacker who knows a user's email address and username can hijack the user's account by poisoning the link in the password reset notification message. A patch is available in version 2.26.1. As a workaround, define $g_path as appropriate in config_inc.php.
MantisBT is an open source bug tracker. Due to insufficient access-level checks on the Wiki redirection page, any user can reveal private Projects' names, by accessing wiki.php with sequentially incremented IDs. This issue has been addressed in commit 65c44883f which has been included in release 2.258. Users are advised to upgrade. Users unable to upgrade should disable wiki integration ( $g_wiki_enable = OFF;).
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions prior to 2.25.6, due to insufficient access-level checks, any logged-in user allowed to perform Group Actions can access to the Summary field of private Issues (i.e. having Private view status, or belonging to a private Project) via a crafted bug_arr[] parameter in bug_actiongroup_ext.php. This issue is fixed in version 2.25.6. There are no workarounds.