Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wekan Project | Wekan | < 8.19 |
Related Weaknesses (CWE)
References
- https://github.com/wekan/wekan/commit/1d16955b6d4f0a0282e89c2c1b0415c7597019b8Patch
- https://wekan.fi/Product
- https://www.vulncheck.com/advisories/wekan-attachment-upload-object-relationshipThird Party Advisory
FAQ
What is CVE-2026-25561?
CVE-2026-25561 is a vulnerability with a CVSS score of 7.5 (HIGH). 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)...
How severe is CVE-2026-25561?
CVE-2026-25561 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-25561?
Check the references section above for vendor advisories and patch information. Affected products include: Wekan Project Wekan.