CVE-2026-111909 phpMyFAQ before 4.1.9 Missing Authorization Allows Superadmin Deletion via deleteUser API
Authenticated users with delete permissions can delete superadmin accounts, removing administrative access and accountability in phpMyFAQ.
- 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-2026-111909?
CVE-2026-111909 is a high-severity missing authorization vulnerability in thorsten phpMyFAQ, published on 17 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
phpMyFAQ before 4.1.9 contains a missing authorization vulnerability in the deleteUser() API that allows authenticated non-superadmin users with delete_user permission to delete superadmin accounts. Attackers can send a DELETE request to /admin/api/user/delete with a superadmin's userId other than 1, removing administrative access and accountability.
Weakness: CWE-269
Which versions are affected by CVE-2026-111909?
How do I fix CVE-2026-111909?
No fix has been published for CVE-2026-111909 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-111909 being exploited?
There is no known exploitation of CVE-2026-111909 in the wild and no public exploit code.
Sources
Also known as GHSA-2jrh-wx9p-9fp9, GHSA-7j43-ww55-pm3g.