Cisco WebEx Meetings Server 2.6 allows remote authenticated users to conduct command-injection attacks via vectors related to an upload's file type, aka Bug ID CSCuy92715.
http://www.securitytracker.com/id/1036315
http://www.securityfocus.com/bid/91779
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160714-wms4