TI-2026-34080 Aliases CVE-2026-46363 GHSA-f5p7-2c9q-8896

phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass

MEDIUM 56CWE-79Published 2026-05-15 · Updated 2026-05-28

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in FAQ creation and update endpoints that bypass sanitization through encode-decode cycles. The vulnerability allows authenticated attackers with FAQ_ADD permission to inject malicious script tags via question or answer parameters, which execute in every visitor's browser when FAQ content is rendered with the raw Twig filter.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00187 8th percentileScored 2026-11-07

Fix Fixed phpmyfaq (thorsten): 4.1.2phpmyfaq/phpmyfaq (Packagist): 4.1.2+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

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	before 4.1.2	4.1.2	Patch available	CNA
—	phpmyfaq/phpmyfaq (Packagist)	before 4.1.2	4.1.2	Patch available	GHSA-f5p7-2c9q-8896
—	thorsten/phpmyfaq (Packagist)	before 4.1.2	4.1.2	Patch available	GHSA-f5p7-2c9q-8896

phpmyfaq Vendorthorsten Affected before 4.1.2 Fixed in 4.1.2 Patch available CNA
phpmyfaq/phpmyfaq (Packagist) Vendor— Affected before 4.1.2 Fixed in 4.1.2 Patch available GHSA-f5p7-2c9q-8896
thorsten/phpmyfaq (Packagist) Vendor— Affected before 4.1.2 Fixed in 4.1.2 Patch available GHSA-f5p7-2c9q-8896

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 4.1.2
Fix · GHSA-f5p7-2c9q-8896 phpmyfaq/phpmyfaq (Packagist) Fixed in 4.1.2 Advisory →
Fix · GHSA-f5p7-2c9q-8896 thorsten/phpmyfaq (Packagist) Fixed in 4.1.2 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-05-15
thorsten phpmyfaq 4.1.2
13 records Highest priority Priority HIGH 5 HIGH, 8 MEDIUM
Other records, highest priority first
- TI-2026-32868 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check EndpointPriority HIGH 81
- TI-2026-34083 phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission BypassPriority HIGH 77
- TI-2026-34084 phpMyFAQ - Stored XSS via Utils::parseUrl() in Comment RenderingPriority HIGH 69
Show all 13 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-46363
2026-10-03 Alias added: GHSA-f5p7-2c9q-8896

References

Advisory 2

Other 1

https://github.com/thorsten/phpMyFAQ

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