title: [20210704] - Core - Privilege escalation through com_installer
description: An issue was discovered in Joomla! 2.5.0 through 3.9.27. Install action in com_installer lack the required hardcoded ACL checks for superusers. A default system is not affected cause the default ACL for com_installer is limited to super users already.
problem types: CSRF
affected:
{
product: Joomla! CMS
vendor: Joomla! Project
versions:
status: affected, version: 2.5.0-3.9.27
}