CVE-2026-1963 WeKan Attachment Storage attachments.js MoveStorageBleed access control

A vulnerability was found in WeKan up to 8.20. This affects an unknown function of the file models/attachments.js of the component Attachment Storage. The manipulation results in improper access controls. The attack may be launched remotely. Upgrading to version 8.21 mitigates this issue. The pat...