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.
Published: 2026-05-15
Score: 9.3 Critical
EPSS: 1.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-289f-fq7w-6q2w phpMyFAQ has unauthenticated SQL injection via User-Agent header in BuiltinCaptcha
History

Thu, 28 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Fri, 15 May 2026 23:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 15 May 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Thorsten
Thorsten phpmyfaq
Vendors & Products Thorsten
Thorsten phpmyfaq

Fri, 15 May 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title phpMyFAQ - SQL Injection via User-Agent Header in BuiltinCaptcha
First Time appeared Phpmyfaq
Phpmyfaq phpmyfaq
Weaknesses CWE-89
CPEs cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
Vendors & Products Phpmyfaq
Phpmyfaq phpmyfaq
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Phpmyfaq Phpmyfaq
Thorsten Phpmyfaq
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-28T14:15:26.917Z

Reserved: 2026-05-13T19:40:27.809Z

Link: CVE-2026-46364

cve-icon Vulnrichment

Updated: 2026-05-15T22:11:18.993Z

cve-icon NVD

Status : Deferred

Published: 2026-05-15T19:17:03.750

Modified: 2026-06-17T10:53:36.230

Link: CVE-2026-46364

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-18T08:00:16Z

Weaknesses