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Vulnerability record · CVE-2026-32629 · published 2 April 2026

CVE-2026-32629: Phpmyfaq improper input validation vulnerability

Phpmyfaq · Phpmyfaq

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.

5.4 CVSS 4.0 Medium EPSS 0.31% · top 79.2% CWE-20 · Improper input validationCWE-79 · Cross-site scripting
5.4CVSS 4.0 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1 Product
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-98gw-w575-h2ph ExploitVendor Advisory
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-98gw-w575-h2ph ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-59943Phpmyfaq improper access control vulnerabilityphpMyFAQ is an open source FAQ web application. Versions 4.0-nightly-2025-10-03 and below do not enforce uniqueness of email addresses during user re…EPSS 0.42%9.8CVE-2023-5865Phpmyfaq insufficient session expiration vulnerabilityInsufficient Session Expiration in GitHub repository thorsten/phpmyfaq prior to 3.2.2.EPSS 0.58%9.8CVE-2023-5227Phpmyfaq unrestricted file upload vulnerabilityUnrestricted Upload of File with Dangerous Type in GitHub repository thorsten/phpmyfaq prior to 3.1.8.EPSS 0.52%9.8CVE-2023-4006Phpmyfaq csv injection vulnerabilityImproper Neutralization of Formula Elements in a CSV File in GitHub repository thorsten/phpmyfaq prior to 3.1.16.EPSS 0.81%9.8CVE-2023-2429Phpmyfaq improper access control vulnerabilityImproper Access Control in GitHub repository thorsten/phpmyfaq prior to 3.1.13.EPSS 0.53%9.8CVE-2023-1886Phpmyfaq authentication bypass by capture-replay vulnerabilityAuthentication Bypass by Capture-replay in GitHub repository thorsten/phpmyfaq prior to 3.1.12.EPSS 0.88%9.8CVE-2023-1753Phpmyfaq weak password requirements vulnerabilityWeak Password Requirements in GitHub repository thorsten/phpmyfaq prior to 3.1.12.EPSS 0.72%9.8CVE-2023-0788Phpmyfaq code injection vulnerabilityCode Injection in GitHub repository thorsten/phpmyfaq prior to 3.1.11.EPSS 0.89%

Source: NIST National Vulnerability Database (record CVE-2026-32629), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.