The web-based administration console in Apache ActiveMQ 5.x before 5.13.2 does not send an X-Frame-Options HTTP header, which makes it easier for remote attackers to conduct clickjacking attacks via a crafted web page that contains a (1) FRAME or (2) IFRAME element.
https://access.redhat.com/errata/RHSA-2016:1424
http://www.securitytracker.com/id/1035327
http://www.securityfocus.com/bid/84321
http://www.openwall.com/lists/oss-security/2016/03/10/11
http://activemq.apache.org/security-advisories.data/CVE-2016-0734-announcement.txt