Cisco WebEx Meeting Center allows remote attackers to activate disabled meeting attributes, and consequently obtain sensitive information, by providing crafted parameters during a meeting-join action, aka Bug ID CSCuo34165.
https://exchange.xforce.ibmcloud.com/vulnerabilities/100576
http://www.securitytracker.com/id/1031558
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0590