Vulnerability Description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.11.0 through 2.28.1, a Stored XSS vulnerability is caused by incorrect escaping of a saved filter's owner, allowing an attacker to inject arbitrary HTML on systems where $g_show_user_realname = ON. Note that By default, only users with Manager access level or above can save their filters publicly. This issue has been fixed in version 2.28.2. If developers are unable to update immediately, they can work around this issue by preventing display of users' real names (set $g_ show_user_realname = OFF; in configuration), and restricting the ability to store filters (set $g_stored_query_create_threshold / $g_stored_query_create_shared_threshold to NOBODY).
Related Weaknesses (CWE)
References
- https://github.com/mantisbt/mantisbt/commit/44f490bcf20fd491c1b8f3fc9dd041d8c2a3
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-f633-865q-2mhh
- https://mantisbt.org/bugs/view.php?id=37015
FAQ
What is CVE-2026-40607?
CVE-2026-40607 is a documented vulnerability. Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.11.0 through 2.28.1, a Stored XSS vulnerability is caused by incorrect escaping of a saved filter's owner, allowing an atta...
How severe is CVE-2026-40607?
CVSS scoring is not yet available for CVE-2026-40607. Check NVD for updates.
Is there a patch for CVE-2026-40607?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.