Vulnerability · Published Feb 5, 2026 · Assigned by VulDB
CVE-2026-1962WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control
Medium 6.3
In plain English
A medium-severity improper access control in WeKan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Official description
A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.
Affected products (as reported)
Weakness: CWE-284, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
References
- VDB-344484 | WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control vdb-entry, technical-description
- VDB-344484 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #742677 | Wekan <8.21 Improper access control on migration endpoints (CWE-284) third-party-advisory
- https://github.com/wekan/wekan/commit/053bf1dfb76ef230db162c64a6ed50ebedf67eee patch
- https://github.com/wekan/wekan/releases/tag/v8.21 patch
- https://github.com/wekan/wekan/ product