Authorization Bypass Vulnerability in phpMyFAQ by phpMyFAQ Team
CVE-2026-85592

6.3MEDIUM

Key Information:

Vendor

Thorsten

Status
pHPMyFAQ
Vendor
CVE Published:
4 September 2026

What is CVE-2026-85592?

An authorization bypass vulnerability has been identified in phpMyFAQ versions before 4.1.8. This issue occurs in the question creation endpoint, where the isAddingQuestionsAllowed() method inadvertently allows all callers to access the functionality when the main.enableAskQuestions setting is activated. This flaw disregards the records.allowQuestionsForGuests configuration, enabling unauthenticated attackers to exploit the question/create API endpoint. As a result, they can bypass the established restrictions for guest submissions and inject spam into the administrative moderation queue, posing serious implications for user experience and site integrity.

Affected Version(s)

phpMyFAQ 0 < 4.1.8

phpMyFAQ 4.1.8

References

https://github.com/thorsten/phpMyFAQ/security/advisories/...
vendor-advisory
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1....
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

pavelkohout396
.