CVE-2026-108851 phpMyFAQ through 4.1.10 Missing Authorization via MCP Server faq_search Tool
Attackers with MCP server access can read restricted FAQ content due to missing permission checks in the search tool.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108851?
CVE-2026-108851 is a medium-severity missing authorization vulnerability in thorsten phpMyFAQ, published on 11 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
phpMyFAQ through 4.1.10 contains a missing authorization vulnerability in the MCP server faq_search tool that allows MCP clients to read restricted FAQs because Search::searchDatabase() never applies user or group permission checks. Attackers connected to the phpmyfaq:mcp:server can issue search queries to retrieve the full question and answer text of active FAQs restricted to specific users or groups.
Weakness: CWE-862
Which versions are affected by CVE-2026-108851?
How do I fix CVE-2026-108851?
No fix has been published for CVE-2026-108851 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-2026-108851 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108851 exists.
Sources
Also known as GHSA-52xr-g583-rx96.