Improper Authentication in Joomla! - CVE-2026-48896
Published: May 26, 2026
Vulnerability identifier: #VU132326
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-48896
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass multi-factor authentication checks.
The vulnerability exists due to improper authentication state management in the MFA authentication flow when handling login requests. A remote attacker can send a specially crafted authentication sequence to bypass multi-factor authentication checks.
Affected software
Joomla!
How to mitigate CVE-2026-48896
Install security update from vendor's website.
Joomla! - addressed in versions 5.4.6, 6.1.1