What’s Vulnerable › Vulnerabilities

CVE-2026-32629: phpMyFAQ: Stored XSS via Unsanitized Email Field in Admin FAQ Editor

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-02 · updated 2026-10-26
• Weakness: CWE-20

Description

phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, an unauthenticated attacker can submit a guest FAQ with an email address that is syntactically valid per RFC 5321 (quoted local part) yet contains raw HTML — for example "<script>alert(1)</script>"@evil.com. PHP's FILTER_VALIDATE_EMAIL accepts this email as valid. The email is stored in the database without HTML sanitization and later rendered in the admin FAQ editor template using Twig's |raw filter, which bypasses auto-escaping entirely. This issue has been patched in version 4.1.1.

Affected products

• thorsten phpMyFAQ: before 4.1.1 — fixed in 4.1.1

How to fix

Upgrade to a fixed version: thorsten phpMyFAQ 4.1.1. Check the vendor advisory for mitigations.

References

• https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1
• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-98gw-w575-h2ph
• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-98gw-w575-h2ph

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