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CVE-2026-35672— phpMyFAQ - Authentication Bypass via Empty API Token

Quick assessment

Affected
thorsten 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 4.1.3之前版本存在安全漏洞，该漏洞源于API v4.0中默认空的api.apiClientToken允许未经验证用户创建和修改FAQ条目，攻击者可通过发送空的x-pmf-token标头绕过令牌验证，通过POST端点注入恶意内容。

CVSS 7.5 · High EPSS 0.56% · P45

Affected Version Matrix 2

VendorProduct Version RangeStatus
thorsten phpMyFAQ < 4.1.3 affected
4.1.3 unaffected
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I. Basic Information for CVE-2026-35672

Vulnerability Information
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Vulnerability Title
phpMyFAQ - Authentication Bypass via Empty API Token
Source: CVE Program / CVE List V5
Vulnerability Description
phpMyFAQ before 4.1.3 contains an authentication bypass vulnerability in API v4.0 where the default empty api.apiClientToken allows unauthenticated users to create and modify FAQ entries. Attackers can send an empty x-pmf-token header to bypass token validation and inject malicious content via POST endpoints /api/v4.0/faq/create, /api/v4.0/category, and /api/v4.0/question.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的默认资源初始化
Source: CVE Program / CVE List V5
Vulnerability Title
phpMyFAQ 安全漏洞
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 4.1.3之前版本存在安全漏洞，该漏洞源于API v4.0中默认空的api.apiClientToken允许未经验证用户创建和修改FAQ条目，攻击者可通过发送空的x-pmf-token标头绕过令牌验证，通过POST端点注入恶意内容。
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

Vendor Product Affected Versions CPE Subscribe
thorsten phpMyFAQ 0 ~ 4.1.3 -

II. Public POCs for CVE-2026-35672

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 8308 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-35672

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Vendor Advisories for CVE-2026-35672 (2)

Same Patch Batch · thorsten · 2026-05-28 · 4 CVEs total

CVE-2026-35671 8.8 HIGH phpMyFAQ - Insecure Direct Object Reference in User Password API
CVE-2026-35675 8.2 HIGH phpMyFAQ - Authentication Bypass via Missing Password Reset Token in /api/user/password/up
CVE-2026-35676 8.2 HIGH phpMyFAQ - Unauthenticated Password Reset via User Password Update Endpoint

IV. Related Vulnerabilities

Same product: phpMyFAQ
Same vendor: thorsten
Same weakness: CWE-1188

V. Comments for CVE-2026-35672

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