TI-2026-40910 Aliases CVE-2026-56737 GHSA-8gpw-xvpf-hvx5

phpMyFAQ's two-factor authentication login bypasses the password factor

HIGH 70CWE-287Published 2026-09-24 · Updated 2026-09-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

phpMyFAQ is an open source FAQ web application. Versions 3.2.0 through 4.1.5 contain an authentication bypass in its public two-factor authentication verification flow: an unauthenticated attacker can submit an account’s numeric user ID and a valid or brute-forced six-digit TOTP code without first authenticating with the account password, allowing takeover of any 2FA-enabled account, including administrator accounts. Version 4.1.6 is patched by binding TOTP verification to a session established after successful password authentication and limiting failed TOTP attempts. No official workaround is documented; affected installations should upgrade to 4.1.6 or later.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00527 44th percentileScored 2026-11-07

Fix Fixed phpMyFAQ (thorsten): 4.1.6thorsten/phpmyfaq (Packagist): 4.1.6+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
thorsten	phpMyFAQ	3.2.0 to before 4.1.6	4.1.6	Patch available	CNA
—	thorsten/phpmyfaq (Packagist)	3.2.0 to before 4.1.6	4.1.6	Patch available	GHSA-8gpw-xvpf-hvx5
—	phpmyfaq/phpmyfaq (Packagist)	3.2.0 to before 4.1.6	4.1.6	Patch available	GHSA-8gpw-xvpf-hvx5

phpMyFAQ Vendorthorsten Affected 3.2.0 to before 4.1.6 Fixed in 4.1.6 Patch available CNA
thorsten/phpmyfaq (Packagist) Vendor— Affected 3.2.0 to before 4.1.6 Fixed in 4.1.6 Patch available GHSA-8gpw-xvpf-hvx5
phpmyfaq/phpmyfaq (Packagist) Vendor— Affected 3.2.0 to before 4.1.6 Fixed in 4.1.6 Patch available GHSA-8gpw-xvpf-hvx5

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:phpmyfaq:phpmyfaq::::::::	—	—	thorsten

cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:* Versions — — ·thorsten

Remediation

Fix · CNA phpMyFAQ (thorsten) Fixed in 4.1.6
Fix · GHSA-8gpw-xvpf-hvx5 thorsten/phpmyfaq (Packagist) Fixed in 4.1.6 Advisory →
Fix · GHSA-8gpw-xvpf-hvx5 phpmyfaq/phpmyfaq (Packagist) Fixed in 4.1.6 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-56737
2026-10-03 Alias added: GHSA-8gpw-xvpf-hvx5

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-56737

Other 6

TI-2023-00296 Improper Authentication in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
TI-2026-76118 Authentication bypass in phpMyFAQ via WebAuthn credential injection CVSS 4.0CRITICAL 9.3
TI-2026-32868 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint CVSS 4.0CRITICAL 9.3
TI-2026-76108 Unauthenticated denial of service in phpMyFAQ API pagination CVSS 4.0HIGH 8.7
TI-2026-53313 phpMyFAQ 3.1.0 through 4.1.6 Authentication Bypass via LDAP CVSS 4.0HIGH 8.8
TI-2026-34083 phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission Bypass CVSS 4.0HIGH 8.7

See all 224 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences