CVE-2026-35672CWE-1188

phpMyFAQ - Authentication Bypass via Empty API Token

High · published May 28, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
45.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00556 · 45.6th percentile
Weakness
CWE-1188 · Initialization of a Resource with an Insecure Default
Published
2026-05-28T14:13Z
EPSS history
Timeline
  • 28 MAY 14:13Z
    phpMyFAQ - Authentication Bypass via Empty API Token
    cvelistv5