CVE-2026-108851CWE-862broken-access-control

CVE-2026-108851

Low · published October 11, 2026

CVSS v3.1
3.3
EPSS
0%
Percentile
0.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.3 · LOW
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
4.8 · CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00101 · 0.9th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-11T18:17Z
References (6)
https://github.com/thorsten/phpMyFAQ · [email protected]https://github.com/thorsten/phpMyFAQ/blob/4.1.10/phpmyfaq/src/phpMyFAQ/Search.php#L137-L194 · [email protected]https://github.com/thorsten/phpMyFAQ/blob/4.1.10/phpmyfaq/src/phpMyFAQ/Service/McpServer/FaqSearchToolExecutor.php#L56-L102 · [email protected]https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/phpmyfaq-mcp-search-visibility · [email protected]https://www.vulncheck.com/advisories/phpmyfaq-through-4.1.10-missing-authorization-via-mcp-server-faq-search-tool · [email protected]https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/phpmyfaq-mcp-search-visibility · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 13 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 11 OCT 13:26Z
    phpMyFAQ through 4.1.10 Missing Authorization via MCP Server faq_search Tool
    cvelistv5
  • 11 OCT 13:26Z
    phpMyFAQ through 4.1.10 Missing Authorization via MCP Server faq_search Tool
    cvelistv5