CVE-2026-46360— phpMyFAQ - Stored XSS via Entity Decoding Depth Limit Bypass in SVG Sanitizer
Quick assessment
Affected
thorsten phpmyfaq
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
phpMyFAQ是Thorsten Rinne个人开发者的一个多语言、完全由数据库驱动的常见问题解答系统。 phpMyFAQ 4.1.2之前版本存在跨站脚本漏洞，该漏洞源于SvgSanitizer::decodeAllEntities中递归实体解码限制为5次，可能导致经过身份验证且具有FAQ_EDIT权限的用户上传恶意SVG文件绕过清理，在用户查看时执行任意JavaScript。
Possible ATT&CK Techniques 3 AI
T1068 · Exploitation for Privilege Escalation T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-46360
Vulnerability Information
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Vulnerability Title
phpMyFAQ - Stored XSS via Entity Decoding Depth Limit Bypass in SVG Sanitizer
Source: CVE Program / CVE List V5
Vulnerability Description
phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in SvgSanitizer::decodeAllEntities() that limits recursive entity decoding to 5 iterations, allowing attackers to bypass sanitization. Authenticated users with FAQ_EDIT permission can upload malicious SVG files with deeply nested ampersand encoding around numeric HTML entities to reconstruct javascript: URLs, which execute arbitrary JavaScript when clicked by other users viewing the uploaded SVG.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
phpMyFAQ 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
phpMyFAQ是Thorsten Rinne个人开发者的一个多语言、完全由数据库驱动的常见问题解答系统。 phpMyFAQ 4.1.2之前版本存在跨站脚本漏洞，该漏洞源于SvgSanitizer::decodeAllEntities中递归实体解码限制为5次，可能导致经过身份验证且具有FAQ_EDIT权限的用户上传恶意SVG文件绕过清理，在用户查看时执行任意JavaScript。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-46360
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-46360 (2)
Same Patch Batch · thorsten · 2026-05-15 · 13 CVEs total
| CVE-2026-46364 | 9.8 CRITICAL | phpMyFAQ - SQL Injection via User-Agent Header in BuiltinCaptcha |
| CVE-2026-45010 | 9.1 CRITICAL | phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint |
| CVE-2026-46367 | 7.6 HIGH | phpMyFAQ - Stored XSS via Utils::parseUrl() in Comment Rendering |
| CVE-2026-46359 | 7.5 HIGH | phpMyFAQ - SQL Injection in CurrentUser::setTokenData via Unescaped OAuth Token Fields |
| CVE-2026-46366 | 7.5 HIGH | phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission Bypas |
| CVE-2026-46361 | 6.9 MEDIUM | phpMyFAQ - Stored Cross-Site Scripting via raw Filter in search.twig |
| CVE-2026-45008 | 6.5 MEDIUM | phpMyFAQ - Path Traversal in Client::deleteClientFolder via URL Parameter |
| CVE-2026-46362 | 6.5 MEDIUM | phpMyFAQ - Authorization Bypass in Admin Pages via Non-Terminating Permission Check |
| CVE-2026-46363 | 5.4 MEDIUM | phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass |
| CVE-2026-46365 | 5.4 MEDIUM | phpMyFAQ - Missing Authorization in Tag Deletion Endpoint |
| CVE-2026-45007 | 4.3 MEDIUM | phpMyFAQ - Missing Permission Check on 12 Configuration API Endpoints Allows Information D |
| CVE-2026-45009 | 4.3 MEDIUM | phpMyFAQ - Insufficient Authorization Check in Admin API Endpoints |
IV. Related Vulnerabilities
Same product: phpmyfaq
-
CVE-2026-109573
phpMyFAQ before 4.1.9 SQL Injection via api/autocomplete Sea -
CVE-2026-108851
phpMyFAQ through 4.1.10 Missing Authorization via MCP Server -
CVE-2026-47132
phpMyFAQ: SQL LIKE Wildcard Injection in Chat User Search Al -
CVE-2026-56738
phpMyFAQ has SQL Injection in `StopWords::add()` — Unescaped -
CVE-2026-56737
phpMyFAQ's two-factor authentication login bypasses the pass
Same vendor: thorsten
-
CVE-2026-109573
phpMyFAQ before 4.1.9 SQL Injection via api/autocomplete Sea -
CVE-2026-108851
phpMyFAQ through 4.1.10 Missing Authorization via MCP Server -
CVE-2026-47132
phpMyFAQ: SQL LIKE Wildcard Injection in Chat User Search Al -
CVE-2026-56738
phpMyFAQ has SQL Injection in `StopWords::add()` — Unescaped -
CVE-2026-56737
phpMyFAQ's two-factor authentication login bypasses the pass
Same weakness: CWE-79
-
CVE-2026-103369
Social Share Buttons & Analytics Plugin <= 4.5 - Authenticat -
CVE-2026-101924
NewStatPress <= 1.4.5 - Unauthenticated Stored Cross-Site Sc -
CVE-2026-100153
NewStatPress <= 1.4.5 - Unauthenticated Stored Cross-Site Sc -
CVE-2026-97398
FV Flowplayer Video Player <= 7.5.54.7212 - Unauthenticated -
CVE-2026-83592
Contact Form DB for Enfold <= 2.0.2 - Unauthenticated Stored
V. Comments for CVE-2026-46360
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