CVE-2026-85592 phpMyFAQ before 4.1.8 Authorization Bypass via question/create
Unauthenticated attackers can bypass guest restrictions to inject spam into the admin queue when ask questions are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85592?
CVE-2026-85592 is a medium-severity missing authorization vulnerability in thorsten phpMyFAQ, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
phpMyFAQ before 4.1.8 contains an authorization bypass vulnerability in the question creation endpoint where the isAddingQuestionsAllowed() method grants access to all callers when main.enableAskQuestions is enabled, ignoring the records.allowQuestionsForGuests setting. Unauthenticated attackers can submit questions via the question/create API endpoint to bypass guest submission restrictions and inject spam into the admin moderation queue.
Weakness: CWE-863
Which versions are affected by CVE-2026-85592?
How do I fix CVE-2026-85592?
No fix has been published for CVE-2026-85592 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-2026-85592 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85592 exists.
Sources
Also known as GHSA-447p-f6x5-rw98, GHSA-546h-9ghq-x49g.