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

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MEDIUM

phpMyFAQ before 4.1.8 Authorization Bypass via question/create

Published Sep 4, 2026

6.3

MEDIUM

CVSS 4.0

EPSS 0.31%

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.

Affected products

Vendor Thorsten Product phpMyFAQ Default
unaffected
- Version
  0
  Status
  affected
  Constraints
  <4.1.8
- Version
  4.1.8
  Status
  unaffected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Thorsten

phpMyFAQ

unaffected

Version	Status	Constraints
0	affected	<4.1.8
4.1.8	unaffected	-

Remediation

No remediation recorded yet.

Metrics

0.31% 0.00310

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.00310

Score over time

Sep–Oct 2026

EPSS v5

Percentile over time

EPSS v5

Table of values (2 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	0.31% (0.00310)	21.66th	v5 (v2026.06.15)
Sep 5, 2026	0.25% (0.00249)	16.10th	v5 (v2026.06.15)

Weaknesses (1)

CWE-863

Incorrect Authorization

References (2)

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-546h-9ghq-x49g
exploitvendor-advisory
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-authorization-bypass-via-question-create
third-party-advisory

Link	Providers	Tags
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-546h-9ghq-x49g		exploitvendor-advisory
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-authorization-bypass-via-question-create		third-party-advisory