The remote host is running a web application that is affected by a Cross-Site Scripting (XSS) attack vector.
Versions of Apache ActiveMQ 5.x prior to 5.11.4, 5.12.3, or 5.13.2 are affected by a flaw that is due to missing 'X-Frame-Options' headers in HTTP responses. This may potentially allow a context-dependent attacker to conduct a clickjacking attack.
Upgrade to ActiveMQ 5.13.2 or later. If version 5.13.x cannot be obtained, versions 5.12.3 and 5.11.4 have also been patched for this issue.