CVE-2025-65778: An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded…
CVE-2025-65778 · Severity: high · CVSS 8.1 · Published 2025-12-15
An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded attachments can be served with attacker-controlled Content-Type (text/html), allowing execution of attacker-supplied HTML/JS in the application's origin and enabling session/token theft and CSRF actions.
No. Junglewise Threat Intelligence has no report of CVE-2025-65778 being exploited in the wild.
How severe is CVE-2025-65778?
High severity, with a CVSS score of 8.1, published 15 December 2025.
Which products and versions are affected?
Wekan Project Wekan. The advisory does not name versions.
Is there a fix for CVE-2025-65778?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-65778?
Check whether you run Wekan Project Wekan. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.