phpMyFAQ - Stored Cross-Site Scripting via raw Filter in search.twig

published 2026-05-06 6 mo ago modified 2026-11-08 25 h ago also EUVD-2026-30596 , GHSA-pqh6-8fxf-jx22

cvss: 6.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits: 0; none known

phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in search.twig where result.question and result.answerPreview are rendered with the raw filter, disabling autoescape protection. Attackers with FAQ editor privileges can inject HTML-entity-encoded payloads that bypass html_entity_decode(strip_tags()) processing in SearchController.php, executing arbitrary JavaScript in every visitor's browser context including administrators.

Patch / fix

fixed in 3

packagist phpmyfaq/phpmyfaq 4.1.2
packagist thorsten/phpmyfaq 4.1.2
thorsten phpmyfaq 4.1.2

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-05-16)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-pqh6-8fxf-jx22 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
CNA	4.0	8.2	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
GitHub	3.1	6.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
CNA	4.0	8.2	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem	package	affected	fixed in
packagist	phpmyfaq/phpmyfaq	<4.1.2	4.1.2
packagist	thorsten/phpmyfaq	<4.1.2	4.1.2

Affected products

thorsten phpmyfaq

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /thorsten/phpMyFAQ/security/advisories/GHSA-pqh6-8fxf-jx22
vendor-advisory, exploit, web
vulncheck.com /advisories/phpmyfaq-stored-cross-site-scripting-via-raw-filter-in-search-twig
third-party-advisory, web
nvd.nist.gov /vuln/detail/CVE-2026-46361
advisory
github.com /thorsten/phpMyFAQ
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary