CVE-2026-111890 phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta Privilege Escalation via updateUserRights
Administrators with USER_EDIT rights can escalate privileges to gain unrestricted FAQ access across all languages via the update-rights API.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111890?
CVE-2026-111890 is a high-severity vulnerability in thorsten phpMyFAQ, published on 17 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
phpMyFAQ from 4.2.0-alpha.2 before 4.2.0-beta contains a privilege escalation vulnerability in UserController::updateUserRights that drops per-right language restrictions when rights are re-granted. Administrators holding USER_EDIT can submit language-scoped rights to the update-rights API, including for themselves, to gain unrestricted FAQ create, edit, and publish access across all languages.
Weakness: CWE-269
Which versions are affected by CVE-2026-111890?
How do I fix CVE-2026-111890?
No fix has been published for CVE-2026-111890 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111890 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111890 exists.
Sources
Also known as GHSA-3666-fmjj-qm5h, GHSA-x3mg-fj9x-7cq2.