[20260807] - Core - MFA Authentication Bypass

Project: Joomla!
SubProject: CMS
Impact: High
Severity: Moderate
Probability: Moderate
Versions: 4.0.0-5.4.7,6.0.0-6.1.2
Exploit type: Authentication Bypass
Reported Date: 2026-07-25
Fixed Date: 2026-08-18
CVE Number: CVE-2026-73337

Description

Insufficient state checks lead to a vector that allows to bypass 2FA checks.

Affected Installs

Joomla! CMS versions 4.0.0-5.4.7, 6.0.0-6.1.2

Solution

Upgrade to version 5.4.8, 6.1.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: bloman