CVE-2026-56396— phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()
Quick assessment
Affected
phpMyFAQ phpMyFAQ
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
phpmyfaq是phpmyfaq团队开源的一套FAQ知识库管理系统。 phpMyFAQ 4.1.4之前版本存在授权问题漏洞，该漏洞源于editUser()和updateUserRights()端点缺少授权，可能导致经过身份验证的具有edit_user权限的非超级管理员用户设置is_superadmin标志或授予任意权限，最终提升权限至超级管理员。
Possible ATT&CK Techniques 1 AI
T1078.004 · Cloud Accounts
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I. Basic Information for CVE-2026-56396
Vulnerability Information
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Vulnerability Title
phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()
Source: CVE Program / CVE List V5
Vulnerability Description
phpMyFAQ before 4.1.4 contains missing authorization vulnerabilities in editUser() and updateUserRights() endpoints that allow authenticated administrators to escalate privileges. Non-SuperAdmin users with edit_user permission can set is_superadmin flag or grant arbitrary rights to escalate to SuperAdmin access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
phpMyFAQ 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
phpmyfaq是phpmyfaq团队开源的一套FAQ知识库管理系统。 phpMyFAQ 4.1.4之前版本存在授权问题漏洞，该漏洞源于editUser()和updateUserRights()端点缺少授权，可能导致经过身份验证的具有edit_user权限的非超级管理员用户设置is_superadmin标志或授予任意权限，最终提升权限至超级管理员。
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-2026-56396
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
Qwen3.6-35B-A3B
· 11725 chars
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III. Intelligence Information for CVE-2026-56396
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Vendor Advisories for CVE-2026-56396 (2)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-56396
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