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OpenAdvisories
High · 7.5 CVE-2026-35672 EUVD-2026-32903GHSA-gp95-j463-vv28

phpMyFAQ - Authentication Bypass via Empty API Token

Published May 28, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
thorsten phpMyFAQ < 4.1.3 4.1.3

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist phpmyfaq/phpmyfaq < 4.1.3 4.1.3 GHSA-gp95-j463-vv28
Packagist thorsten/phpmyfaq < 4.1.3 4.1.3 GHSA-gp95-j463-vv28

References