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CVE-2026-85592— phpMyFAQ before 4.1.8 Authorization Bypass via question/create

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是德国phpMyFAQ团队开源的一个常见问题解答管理系统。 phpMyFAQ 4.1.8之前版本存在授权问题漏洞，该漏洞源于问题创建端点中isAddingQuestionsAllowed()方法在main.enableAskQuestions启用时向所有调用者授予访问权限，忽略records.allowQuestionsForGuests设置，可能导致未经身份验证的攻击者通过question/create API端点提交问题，绕过访客提交限制并向管理员审核队列注入垃圾信息。

CVSS 3.7 · Low EPSS 0.31% · P23

Affected Version Matrix 2

VendorProduct Version RangeStatus
thorsten phpMyFAQ < 4.1.8 affected
4.1.8 unaffected
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I. Basic Information for CVE-2026-85592

Vulnerability Information
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Vulnerability Title
phpMyFAQ before 4.1.8 Authorization Bypass via question/create
Source: CVE Program / CVE List V5
Vulnerability Description
phpMyFAQ before 4.1.8 contains an authorization bypass vulnerability in the question creation endpoint where the isAddingQuestionsAllowed() method grants access to all callers when main.enableAskQuestions is enabled, ignoring the records.allowQuestionsForGuests setting. Unauthenticated attackers can submit questions via the question/create API endpoint to bypass guest submission restrictions and inject spam into the admin moderation queue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
phpMyFAQ 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
phpMyFAQ是德国phpMyFAQ团队开源的一个常见问题解答管理系统。 phpMyFAQ 4.1.8之前版本存在授权问题漏洞，该漏洞源于问题创建端点中isAddingQuestionsAllowed()方法在main.enableAskQuestions启用时向所有调用者授予访问权限，忽略records.allowQuestionsForGuests设置，可能导致未经身份验证的攻击者通过question/create API端点提交问题，绕过访客提交限制并向管理员审核队列注入垃圾信息。
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 ~ 4.1.8 -

II. Public POCs for CVE-2026-85592

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III. Intelligence Information for CVE-2026-85592

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Vendor Advisories for CVE-2026-85592 (2)

Same Patch Batch · thorsten · 2026-09-04 · 8 CVEs total

CVE-2026-85591 7.1 HIGH phpMyFAQ before 4.1.8 Authentication Bypass via Unverified Password Change
CVE-2026-85590 7.1 HIGH phpMyFAQ before 4.1.8 Authentication Bypass via Two-Factor Disable
CVE-2026-85586 6.9 MEDIUM phpMyFAQ before 4.1.8 CAPTCHA Bypass via store parameter
CVE-2026-85593 5.4 MEDIUM phpMyFAQ before 4.1.8 Stored XSS via html_entity_decode
CVE-2026-85587 5.3 MEDIUM phpMyFAQ before 4.1.8 Incorrect Authorization via Admin Pages
CVE-2026-85588 5.3 MEDIUM phpMyFAQ before 4.1.8 TOTP Secret Exposure via Data Export
CVE-2026-85589 5.3 MEDIUM phpMyFAQ before 4.2.0-alpha.2 Missing Authorization via Dashboard API

IV. Related Vulnerabilities

Same product: phpMyFAQ
Same vendor: thorsten
Same weakness: CWE-863

V. Comments for CVE-2026-85592

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