PT-2026-42650 · Packagist · Phpmyfaq/Phpmyfaq+1

Published 2026-05-15 · Updated 2026-05-15

OSV

CVSS v4.0

5.1

Medium

Base vector

AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/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

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-whqh-9pq5-c7r3. This link is maintained to preserve external references.

Original Description

phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in SvgSanitizer::decodeAllEntities() that limits recursive entity decoding to 5 iterations, allowing attackers to bypass sanitization. Authenticated users with FAQ EDIT permission can upload malicious SVG files with deeply nested ampersand encoding around numeric HTML entities to reconstruct javascript: URLs, which execute arbitrary JavaScript when clicked by other users viewing the uploaded SVG.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

GHSA-WJ3Q-VW2V-3RJ3

Affected Products

Phpmyfaq/Phpmyfaq

Thorsten/Phpmyfaq

References · 5

• https://osv.dev/vulnerability/GHSA-wj3q-vw2v-3rj3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-46360 · Security Note
• https://github.com/thorsten/phpMyFAQ · Note
• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-whqh-9pq5-c7r3 · Note
• https://vulncheck.com/advisories/phpmyfaq-stored-xss-via-entity-decoding-depth-limit-bypass-in-svg-sanitizer · Note