CVE-2026-109573

CVSS 9.2 (critical) · published 2026-10-12

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.

Weakness: CWE-89

Source: NVD CVE-2026-109573

References

• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-98p2-cg7p-h385
• https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-sql-injection-via-api-autocomplete-search-endpoint
• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-98p2-cg7p-h385

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