Vulnerability Description
Kanboard through 1.2.52, fixed in commit 928c68a, UserViewController::removeSession fails to validate the session id parameter before passing it to RememberMeSessionModel::remove, allowing authenticated users to delete other users' Remember Me sessions. Attackers can enumerate sequential session IDs and mass-invalidate persistent login sessions of any user, including administrators, forcing re-authentication and causing denial of service.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/kanboard/kanboard/commit/928c68aa2b7c00092dd71084d329b912e229
- https://github.com/kanboard/kanboard/issues/5829
- https://github.com/kanboard/kanboard/pull/5831
- https://www.vulncheck.com/advisories/kanboard-cross-user-deletion-of-persistent-
FAQ
What is CVE-2026-56774?
CVE-2026-56774 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Kanboard through 1.2.52, fixed in commit 928c68a, UserViewController::removeSession fails to validate the session id parameter before passing it to RememberMeSessionModel::remove, allowing authenticat...
How severe is CVE-2026-56774?
CVE-2026-56774 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56774?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.