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CVE-2026-46363— phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1AI

T1059.007 · JavaScript

Affected Version Matrix 2

VendorProductVersion RangeStatus
thorstenphpmyfaq< 4.1.2affected
4.1.2unaffected
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I. Basic Information for CVE-2026-46363

Vulnerability Information
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Vulnerability Title
phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in FAQ creation and update endpoints that bypass sanitization through encode-decode cycles. The vulnerability allows authenticated attackers with FAQ_ADD permission to inject malicious script tags via question or answer parameters, which execute in every visitor's browser when FAQ content is rendered with the raw Twig filter.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
thorstenphpmyfaq 0 ~ 4.1.2 -

II. Public POCs for CVE-2026-46363

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III. Intelligence Information for CVE-2026-46363

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Same Patch Batch · thorsten · 2026-05-15 · 13 CVEs total

CVE-2026-463649.8 CRITICALphpMyFAQ - SQL Injection via User-Agent Header in BuiltinCaptcha
CVE-2026-450109.1 CRITICALphpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint
CVE-2026-463677.6 HIGHphpMyFAQ - Stored XSS via Utils::parseUrl() in Comment Rendering
CVE-2026-463597.5 HIGHphpMyFAQ - SQL Injection in CurrentUser::setTokenData via Unescaped OAuth Token Fields
CVE-2026-463667.5 HIGHphpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission Bypas
CVE-2026-463616.9 MEDIUMphpMyFAQ - Stored Cross-Site Scripting via raw Filter in search.twig
CVE-2026-450086.5 MEDIUMphpMyFAQ - Path Traversal in Client::deleteClientFolder via URL Parameter
CVE-2026-463626.5 MEDIUMphpMyFAQ - Authorization Bypass in Admin Pages via Non-Terminating Permission Check
CVE-2026-463605.4 MEDIUMphpMyFAQ - Stored XSS via Entity Decoding Depth Limit Bypass in SVG Sanitizer
CVE-2026-463655.4 MEDIUMphpMyFAQ - Missing Authorization in Tag Deletion Endpoint
CVE-2026-450074.3 MEDIUMphpMyFAQ - Missing Permission Check on 12 Configuration API Endpoints Allows Information D
CVE-2026-450094.3 MEDIUMphpMyFAQ - Insufficient Authorization Check in Admin API Endpoints

IV. Related Vulnerabilities

Same product: phpmyfaq
Same vendor: thorsten
Same weakness: CWE-79

V. Comments for CVE-2026-46363

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