The host is installed with Atlassian Jira Server before 8.13.19, 8.14.0 before 8.20.7, or 8.21.0 before 8.22.1 and is prone to a code injection vulnerability. A flaw is present in the application which fails to properly handle the Email Templates feature. Successful exploitation could allows a remote attacker with system administrator permissions to execute arbitrary code via Template Injection leading to Remote Code Execution (RCE).