CVE-2026-46401 HAX CMS PHP has Insufficient Session Expiration
Attackers with stolen tokens retain access after logout, enabling unauthorized CMS administration and data access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46401?
CVE-2026-46401 is a medium-severity authentication bypass vulnerability in haxtheweb issues, published on 5 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions prior to 26.0.0 suffer from an improper session termination vulnerability where authentication tokens remain valid after user logout. This allows attackers who obtain valid tokens to maintain persistent access to authenticated CMS functionality, bypassing the intended session termination mechanism and enabling unauthorized access to CMS metadata and administrative functions. Version 26.0.0 fixes the issue.
Weakness: CWE-613
Which versions are affected by CVE-2026-46401?
How do I fix CVE-2026-46401?
No fix has been published for CVE-2026-46401 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-46401 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46401 exists.