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CVE-2026-35672

phpMyFAQ - Authentication Bypass via Empty API Token

Published: May 28, 2026Updated: May 28, 2026 Sources: CVE List

7.5CVSS

HIGH

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.

EPSS Score

N/A

CISA KEV

Not in KEV

Exploits

No Known Exploits

Remediation

No Fix Available

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:HIntegrity

High

A:NAvailability

None

Weaknesses

CWE-1188Initialization of a Resource with an Insecure Default

Affected Products

phpMyFAQ

thorsten

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-gp95-j463-vv28

github.com

https://www.vulncheck.com/advisories/phpmyfaq-authentication-bypass-via-empty-api-token

vulncheck.com

Timeline

Published

May 28, 2026

Last Updated

May 28, 2026

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