What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-05 · updated 2026-06-17
• Weakness: CWE-266

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

• WeKan: before 8.21 — fixed in 8.21

How to fix

Upgrade to a fixed version: WeKan 8.21. Check the vendor advisory for mitigations.

References

• https://github.com/wekan/wekan/
• https://github.com/wekan/wekan/commit/c413a7e860bc4d93fe2adcf82516228570bf382d
• https://github.com/wekan/wekan/releases/tag/v8.21
• https://vuldb.com/?ctiid.344485
• https://vuldb.com/?id.344485
• https://vuldb.com/?submit.742678

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