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Database

SQL injection In thorsten/phpmyfaq

Description

Duplicate Advisory: phpMyFAQ has unauthenticated SQL injection via User-Agent header in BuiltinCaptcha

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-289f-fq7w-6q2w. This link is maintained to preserve external references.

Original Description

phpMyFAQ before 4.1.2 contains an unauthenticated SQL injection vulnerability in BuiltinCaptcha::garbageCollector() and BuiltinCaptcha::saveCaptcha() methods that interpolate unsanitized User-Agent headers into DELETE and INSERT queries. Unauthenticated attackers can exploit the public GET /api/captcha endpoint by crafting malicious User-Agent headers to perform time-based blind SQL injection, extracting sensitive data including user credentials, admin tokens, and SMTP credentials from the database.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Component
Affected version
Patched versions

Aliases

1. NVD-2026-463642. GHSA-289f-fq7w-6q2w3. GCVE-GHSA-ch9q-c9mp-j5gq

References

1. https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-289f-fq7w-6q2w2. https://github.com/thorsten/phpMyFAQ/commit/b9f25109fddb38eee19987183798638d07943f923. https://www.vulncheck.com/advisories/phpmyfaq-sql-injection-via-user-agent-header-in-builtincaptcha

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