CVE-2026-34579

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 bugmonitoradd.php, a user with project-level access can add themselves as a monitor for a...

Insertion of Sensitive Information Into Sent Data

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the bugmonitoradd.php process. An attacker can gain unauthorized access to sensitive metadata and content of private issues by submitting a...

MantisBT has an authorization bypass in private issue monitoring

Using a crafted POST request to bugmonitoradd.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...