CVE-2026-111346: ZenTao PMS through 22.6 Authorization Bypass via action::editComment
ZenTao PMS through 22.6 contains an authorization bypass vulnerability in action::editComment that allows authenticated users to read and overwrite other users' comments by supplying an arbitrary actionID. Attackers can iterate sequential action ids to modify comments on bugs, stories, tasks, and documents in products and projects they cannot access, and view targeted comment content and attachments.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
Any authenticated ZenTao user can exploit it. The attacker does not need access to the affected product or project if they can supply a valid actionID for another user's comment.
What data and actions are exposed?
An attacker can read targeted comment content and attachments, and overwrite comments belonging to other users. Affected comments may be associated with bugs, stories, tasks, and documents.
How could an attacker find comments to target?
The issue can be exploited by providing arbitrary actionID values. Sequential action IDs can be iterated to locate and modify comments.
Are unauthenticated users affected?
The provided severity vector indicates that privileges are required. The described attack requires an authenticated user account.