Cross-site scripting (XSS) vulnerability in the Orchestration/Stack section in OpenStack Dashboard (Horizon) 2014.2 before 2014.2.4 and 2015.1.x before 2015.1.1 allows remote attackers to inject arbitrary web script or HTML via the description parameter in a heat template, which is not properly handled in the help_text attribute in the Field class.
http://www.securityfocus.com/bid/75109
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.openwall.com/lists/oss-security/2015/06/09/7
http://www.debian.org/security/2016/dsa-3617
http://rhn.redhat.com/errata/RHSA-2015-1679.html
http://lists.openstack.org/pipermail/openstack-announce/2015-June/000361.html