CVE-2026-66399

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

6.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N                                    

Vulnerability Description

phpMyFAQ before 4.1.6 contains a privilege escalation vulnerability in GroupController::updateMembers() that allows administrators with only group-management permissions to join privileged groups without verification of required rights. Attackers can add themselves to pre-existing groups holding user-management rights and immediately inherit those permissions to modify or delete user accounts.

Vulnerability Details

Published Date

July 27, 2026

Last Modified

July 27, 2026

CWE ID

CWE-269

Source

NVD

Vendor

thorsten

Product

phpMyFAQ

External References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-28cc-v39j-vr95
https://www.vulncheck.com/advisories/phpmyfaq-before-privilege-escalation-via-group-membership

CVE-2026-66399

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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