CVE-2026-25561

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/7/2026

Last Modified2/10/2026

Sourcenvd

Honeypot Sightings0

Affected Products

wekan_project:wekan

Weaknesses (CWE)

CWE-863

References

https://github.com/wekan/wekan/commit/1d16955b6d4f0a0282e89c2c1b0415c7597019b8(disclosure@vulncheck.com)

https://wekan.fi/(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/wekan-attachment-upload-object-relationship-validation-bypass(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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