CVE-2026-108851
Deferred Deferred - Pending Action

phpMyFAQ MCP Server Missing Authorization in FAQ Search

Publication date: 2026-10-11

Last updated on: 2026-10-11

Assigner: VulnCheck

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.

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Meta Information

Published
2026-10-11
Last Modified
2026-10-11
Generated
2026-10-11
AI Q&A
2026-10-11
EPSS Evaluated
N/A
NVD
CVE-2026-108851
EUVD
EUVD-2026-97002

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
thorsten phpMyFAQ 4.1.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

phpMyFAQ through version 4.1.10 has a missing authorization vulnerability in its MCP server's faq_search tool. This flaw allows MCP clients to read restricted FAQs without proper permission checks. The Search::searchDatabase() function fails to apply user or group restrictions, letting attackers connected to the phpmyfaq:mcp:server retrieve full question and answer text of FAQs meant for specific users or groups.

Detection Guidance

Check if the MCP server is running and accessible. Inspect phpMyFAQ logs for unusual search queries or unauthorized access attempts. Verify if restricted FAQs are being exposed without proper permissions.

Impact Analysis

If you use phpMyFAQ with the MCP server enabled, attackers could access sensitive FAQ content restricted to certain users or groups. This could lead to unauthorized disclosure of confidential information stored in those FAQs, potentially exposing private data or internal knowledge.

Compliance Impact

This vulnerability could violate compliance with GDPR, HIPAA, or other privacy regulations by enabling unauthorized access to restricted FAQ content. Exposure of personal or sensitive data in FAQs may result in legal penalties, data breach notifications, and reputational damage for organizations subject to these regulations.

Mitigation Strategies

Update phpMyFAQ to the latest version that patches this vulnerability. Restrict access to the MCP server and disable unnecessary services. Review and enforce proper user and group permissions for FAQ access.

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