Improper access control in Joomla! - CVE-2026-48904
Published: May 26, 2026
Vulnerability identifier: #VU132329
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-48904
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges.
The vulnerability exists due to improper access control in the com_users group editing webservice endpoint when handling webservice requests. A remote user can send a crafted request to escalate privileges.
Affected software
Joomla!
How to mitigate CVE-2026-48904
Install security update from vendor's website.
Joomla! - addressed in versions 5.4.6, 6.1.1