The host is installed with Atlassian Jira Server before 8.5.4, 8.6.0 before 8.7.0 or 8.7.0 before 8.7.1 and is prone to a cross site scripting (XSS) vulnerability. A flaw is present in the application which fails to properly handle issues in file upload feature. Successful exploitation could allow remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting.