The Frontend in Zabbix before 1.8.20rc2, 2.0.x before 2.0.11rc2, and 2.2.x before 2.2.2rc1 allows remote "Zabbix Admin" users to modify the media of arbitrary users via unspecified vectors.
https://support.zabbix.com/browse/ZBX-7693
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132377.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132376.html