CVE-2026-34579
CVE-2026-34579 · MantisBT has an authorization bypass via private issue monitoring
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior are vulnerable to Authorization Bypass through the private issue monitoring feature . Using a crafted POST request to bug_monitor_add.php, a user with project-level access can add themselves as a monitor for a private issue they do not have access to. Despite displaying an Access Denied error, the application accepts the request and creates a monitor relationship for the private issue. Direct access to the private issue remains blocked, but the user will receive email notifications for updates, leading to disclosure of the private issue's metadata and content. This issue has been fixed in version 2.28.2.
CVSS 5.3 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: php
Affected products and versions
mantisbt
- Versions
- < 2.28.2: Affected
No fix published
mantisbt/mantisbt Packagist
- Versions
- 2.26.1
- 2.26.2
- 2.26.3
- 2.26.4
- 2.27.0
- 2.27.1
- 2.27.2
- 2.27.3
- 2.28.0
- 2.28.1
- Affected ranges
- ECOSYSTEM: ≥ 2.26.1, < 2.28.2
Update to 2.28.2