CVE-2026-25561: Wekan Project Wekan

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

WeKan versions prior to 8.19 contain an authorization weakness in the attachment upload API. The API does not fully validate that provided identifiers (such as boardId, cardId, swimlaneId, and listId) are consistent and refer to a coherent card/board relationship, enabling attempts to upload attachments with mismatched object relationships.

Affected products

• Wekan Project Wekan: before 8.19 (fixed in 8.19)

Published 2026-02-07. Last modified 2026-07-14.