Incorrect authorization in Wekan - CVE-2026-68561
Published: July 28, 2026 / Updated: August 21, 2026
Vulnerability details
The vulnerability allows a remote user to escalate privileges and take over a private board.
The vulnerability exists due to incorrect authorization in the Boards.update allow rule for sort updates in server/permissions/boards.js and canUpdateBoardSort in server/lib/utils.js when handling crafted DDP board update requests that modify the sort field together with other board fields. A remote user can send a specially crafted DDP update request to escalate privileges and take over a private board.
The issue affects authenticated users who are already active members of the target board, including comment-only or read-only members, and can also expose a private board by changing its permission to public.