Improper access control in Joomla! - CVE-2026-21629
Published: April 1, 2026
Vulnerability identifier: #VU124732
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-21629
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Joomla!
Affected software:
Joomla!
Joomla!
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in com_ajax. A remote attacker can bypass implemented security restrictions and gain unauthorized access to the application.
How to mitigate CVE-2026-21629
Install updates from vendor's website.