- Project: Joomla!
- SubProject: CMS
- Impact: High
- Severity: Low
- Versions: 2.5.0 - 3.9.27
- Exploit type: Incorrect Access Control
- Reported Date: 2021-06-06
- Fixed Date: 2021-07-06
- CVE Number: CVE-2021-26038
Install action in com_installer lack the required hardcoded ACL checks for superusers, leading to various potential attack vectors. A default system is not affected cause by default com_installer is limited to super users already.
Joomla! CMS versions 2.5.0 - 3.9.27
Upgrade to version 3.9.28
The JSST at the Joomla! Security Centre.
Reported By: Nicholas Dionysopoulos