The host is installed with Atlassian Jira_Server before 7.13.2 or 8.0.0 before 8.0.2 and is prone to a cross-site scripting vulnerability. A flaw is present in the application which fails to properly handle issues in labels gadget. Successful exploitation could allow remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the jql parameter.