Unauthenticated SQL Injection Vulnerability in phpMyFAQ
CVE-2026-46364

9.8CRITICAL

Key Information:

Vendor

Thorsten

Status
pHPMyFAQ
Vendor
CVE Published:
15 May 2026

What is CVE-2026-46364?

An unauthenticated SQL injection vulnerability exists in phpMyFAQ prior to version 4.1.2, specifically within the BuiltinCaptcha::garbageCollector() and BuiltinCaptcha::saveCaptcha() methods. This vulnerability allows attackers to exploit the public GET /api/captcha endpoint by sending malicious User-Agent headers. Consequently, this leads to time-based blind SQL injection attacks that can extract sensitive information, such as user credentials, admin tokens, and SMTP credentials from the underlying database.

Affected Version(s)

phpmyfaq 0 < 4.1.2

phpmyfaq 4.1.2

References

https://github.com/thorsten/phpMyFAQ/security/advisories/...
vendor-advisory
https://github.com/thorsten/phpMyFAQ/commit/b9f25109fddb3...
patch
https://www.vulncheck.com/advisories/phpmyfaq-sql-injecti...
third-party-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

adrgs
aisafe-bot
.