PT-2026-31946

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.3.0 Description A permission escalation issue exists in Vikunja that allows a user with Write access to a project to escalate their permissions to Admin by moving the project under a project they own. This is due to...

CVE-2026-33700 Vikunja has a Link Share Delete IDOR — Missing Project Ownership Check Allows Cross-Project Link Share Deletion

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33700: Authorization Bypass Through User-Controlled Key

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...