Vulnerability · Published May 28, 2026 · Assigned by VulnCheck

CVE-2026-35671phpMyFAQ - Insecure Direct Object Reference in User Password API

High 8.8

In plain English

A high-severity security flaw in phpMyFAQ from thorsten. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.4%top 67.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

phpMyFAQ before 4.1.3 contains an insecure direct object reference vulnerability in the admin API user password endpoint that allows authenticated administrators to change any user's password without authorization verification. An attacker with low-privilege admin credentials can escalate to SuperAdmin by modifying the userId parameter in the overwrite-password API request.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	phpmyfaq/phpmyfaq	4.1.3	GHSA-xvp4-phqj-cjr3
Packagist	thorsten/phpmyfaq	4.1.3	GHSA-xvp4-phqj-cjr3

Affected products (as reported)

Vendor	Product	Versions
thorsten	phpMyFAQ	0 – before 4.1.3

Weakness: CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

GHSA Advisory GHSA-xvp4-phqj-cjr3 vendor-advisory
VulnCheck Advisory: phpMyFAQ - Insecure Direct Object Reference in User Password API third-party-advisory