CVE-2026-32629

phpMyFAQ: Stored XSS via Unsanitized Email Field in Admin FAQ Editor

State: Published
Severity: 5.4 Medium
Published: Apr 2, 2026
Updated: Apr 2, 2026
Reserved: Mar 12, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.4 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
phpMyFAQthorsten	< 4.1.1Affected

References

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