Title: Wekan <8.21 Improper access control (CWE-284) Description: Methods involved in moving or validating attachment storage did not consistently enforce board visibility or required privileges for the referenced board/attachments, which could enable unauthorized operations on attachment storage workflows. The fix adds authorization/visibility checks before proceeding and tightens validation. Source: https://github.com/wekan/wekan/commit/c413a7e860bc4d93fe2adcf82516228570bf382d User: MegaManSec (UID 94702) Submission: 01/20/2026 12:57 PM (16 days ago) Moderation: 02/05/2026 11:52 AM (16 days later) Status: Accepted VulDB entry: 234485 [WeKan up to 8.20 Attachment Storage models/attachments.js MoveStorageBleed access control] Points: 18