All vulnerabilities
CVE-2026-111894GHSA-fg92-v5rr-4xjq

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

thorsten phpMyFAQ
Open in ThreatlineRecord JSON
CVSS
5.1Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 21 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 7% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.1.9Also 4.2.0-betaCVE List
Published17 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 4

  • phpMyFAQaffected: 3.2.1 before 4.1.9CVE List
  • phpMyFAQunaffected: 4.1.9CVE List
  • phpMyFAQaffected: 4.2.0-alpha before 4.2.0-betaCVE List
  • phpMyFAQunaffected: 4.2.0-betaCVE List

References 2