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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| kanboard | kanboard | ≤ 1.2.52 | — |
References
- Researcher Disclosure technical-description exploit issue-tracking
- Pull Request issue-tracking patch
- Patch Commit patch
- https://www.vulncheck.com/advisories/kanboard-cross-user-deletion-of-persistent-login-sessions-via-unvalidated-session-id third-party-advisory