SQL Injection Vulnerability in phpMyFAQ by phpMyFAQ Team
CVE-2026-109573

9.2CRITICAL

Key Information:

Vendor

Thorsten

Status
pHPMyFAQ
Vendor
CVE Published:
12 October 2026

What is CVE-2026-109573?

An SQL injection vulnerability exists in phpMyFAQ prior to version 4.1.9, specifically within the PdoMysql::escape() function. This issue arises when MySQL or MariaDB is configured in NO_BACKSLASH_ESCAPES mode, allowing attackers to exploit this vulnerability through the api/autocomplete search parameter. By sending a Unicode right single quotation mark, which is converted to an ASCII quote, an unauthenticated attacker can manipulate database queries. This opens the possibility to read sensitive credentials, alter records or even drop tables, posing a significant risk to database integrity and security.

Affected Version(s)

phpMyFAQ 0 < 4.1.9

phpMyFAQ 4.2.0-alpha < 4.2.0-beta

phpMyFAQ 4.1.9

References

https://github.com/thorsten/phpMyFAQ/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1....
third-party-advisory

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

manus-pi
manus-use
.