Cisco TelePresence Video Communication Server (VCS) Expressway X8.6 allows remote authenticated users to bypass intended read-only restrictions and upload Tandberg Linux Package (TLP) files by visiting an administrative page, aka Bug ID CSCuw55651.
http://www.securitytracker.com/id/1034378
http://www.securityfocus.com/bid/79088
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-tvc