Vulnerability Description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior contain a Stored XSS vulnerability. When cloning an issue originating from a Project other than the current one, the clone form (bug_report_page.php) prepends the source Project name before the category selector without proper escaping, allowing an attacker able to to inject HTML if they can set the Project's name (which typically requires manager or administrator access level). This issue has been resolved in version 2.28.2.
Related Weaknesses (CWE)
References
- https://github.com/mantisbt/mantisbt/commit/df22697ae497ddd93f3d9132fdf4979db8d0
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-fvjf-68wh-rwp2
- https://mantisbt.org/bugs/view.php?id=36986
FAQ
What is CVE-2026-34463?
CVE-2026-34463 is a documented vulnerability. Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior contain a Stored XSS vulnerability. When cloning an issue originating from a Project other than the current one...
How severe is CVE-2026-34463?
CVSS scoring is not yet available for CVE-2026-34463. Check NVD for updates.
Is there a patch for CVE-2026-34463?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.