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OpenAdvisories
Medium · 5.4 CVE-2026-111894 EUVD-2026-103325GHSA-wwmv-7qmx-vxv3

phpMyFAQ 3.2.1 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Stored XSS via iframe data: URI

Published Oct 17, 2026 · Updated Oct 21, 2026 · Assigned by VulnCheck

Description

phpMyFAQ 3.2.1 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains a stored cross-site scripting vulnerability that allows authenticated content authors to inject JavaScript by embedding iframes with data:text/html sources in FAQ or News content. Attackers can bypass the hostless media-host allowlist in FaqHelper::cleanUpContent(), which is rendered via Twig's raw filter, to run phishing interfaces or top-frame redirects for viewers.

Affected products

VendorProductAffectedFixed
thorsten phpMyFAQ 3.2.1 – < 4.1.9, 4.2.0-alpha – < 4.2.0-beta 4.1.9

References