Vulnerability · Published Feb 5, 2026 · Assigned by VulDB

CVE-2026-1963WeKan Attachment Storage attachments.js MoveStorageBleed 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).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.4%top 70.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 patch is identified as c413a7e860bc4d93fe2adcf82516228570bf382d. Upgrading the affected component is advised.

Affected products (as reported)

Vendor	Product	Versions
n/a	WeKan	8.08.18.28.38.48.58.68.7

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-344485 | WeKan Attachment Storage attachments.js MoveStorageBleed access control vdb-entry, technical-description
VDB-344485 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #742678 | Wekan <8.21 Improper access control (CWE-284) third-party-advisory
https://github.com/wekan/wekan/commit/c413a7e860bc4d93fe2adcf82516228570bf382d patch
https://github.com/wekan/wekan/releases/tag/v8.21 patch
https://github.com/wekan/wekan/ product