CVE-2026-109573
Published:October 12, 2026
Updated:October 13, 2026
phpMyFAQ before 4.1.9 contains an SQL injection vulnerability in PdoMysql::escape(), which escapes single quotes with backslashes that are treated literally when MySQL or MariaDB runs in NO_BACKSLASH_ESCAPES mode. Unauthenticated attackers can send a Unicode right single quotation mark in the search parameter of api/autocomplete, which is normalized to an ASCII quote, to read credentials and configuration secrets, modify records, or drop tables.
Affected Packages
https://github.com/thorsten/phpMyFAQ.git (GITHUB):
Affected version(s) =4.2.0-alpha.2 <4.2.0-betaFix Suggestion:
Update to version 4.2.0-betahttps://github.com/thorsten/phpMyFAQ.git (GITHUB):
Affected version(s) >=4.1.5 <4.1.9Fix Suggestion:
Update to version 4.1.9thorsten/phpmyfaq (PHP):
Affected version(s) >=4.1.1 <4.1.9Fix Suggestion:
Update to version 4.1.9thorsten/phpmyfaq (PHP):
Affected version(s) =4.2.0-alpha.2 <4.2.0-betaFix Suggestion:
Update to version 4.2.0-betaRelated Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')