Vulnerability · Published May 15, 2026 · Assigned by VulnCheck

CVE-2026-46363phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass

Medium 5.4

In plain English

A medium-severity cross-site scripting in phpmyfaq from thorsten. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 91.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	phpmyfaq/phpmyfaq	4.1.2	GHSA-f5p7-2c9q-8896
Packagist	thorsten/phpmyfaq	4.1.2	GHSA-f5p7-2c9q-8896

Affected products (as reported)

Vendor	Product	Versions
thorsten	phpmyfaq	0 – before 4.1.2

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

GHSA Advisory GHSA-f5p7-2c9q-8896 vendor-advisory
VulnCheck Advisory: phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass third-party-advisory