CVE-2026-56774
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk18th percentile — higher than 18% of all known CVEs
Summary
Kanboard versions up to 1.2.52 have a vulnerability that allows authenticated users to delete other users' 'Remember Me' sessions. The issue arises from a lack of validation of the session ID parameter in the UserViewController::removeSession method.
Risk Assessment
Attackers can enumerate sequential session IDs, leading to mass invalidation of login sessions for any user, including administrators. This can result in forced re-authentication and cause denial of service.
Recommendation
It is recommended to update Kanboard to version 1.2.53 or later to mitigate this vulnerability. Additionally, implementing extra security measures for user sessions is advisable.
Original NVD description (English source)
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.