CVE-2026-55234highCWE-284CWE-639

CVE-2026-55234: high-severity vulnerability in wekan

Wekan: Broken access control: any authenticated user can move their Cards/Lists/Swimlanes into a private board they are not a member of (cross-board write via collection allow rule)

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.5epss 0.4%
Wekan is open source kanban built with Meteor. Prior to 9.37, Wekan DDP update allow rules in server/permissions/cards.js, server/permissions/lists.js, and server/permissions/swimlanes.js authorize against the stored source boardId and do not validate a new boardId in the update modifier. Any authenticated user with write access to their own board can call /cards/update, /lists/update, or /swimlanes/update to move cards, lists, or swimlanes into a private board they are not a member of. This issue is fixed in version 9.37.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
Affected products
wekan · wekan
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