A vulnerability in the conferencing component of Mitel ST 14.2, release GA28 and earlier, could allow an authenticated user to upload a malicious script to the Personal Library by a crafted POST request. Successful exploit could allow an attacker to execute arbitrary code within the context of the application.

A vulnerability in Mitel ST 14.2, release GA28 and earlier, could allow an attacker to use the API function to enumerate through user-ids which could be used to identify valid user ids and associated user names.

The server in Mitel NuPoint Messenger R11 and R3 sends usernames and passwords in cleartext to Exchange servers, which allows remote attackers to obtain sensitive information by sniffing the network.

The web management interface for Mitel 3300 Integrated Communications Platform (ICP) before 4.2.2.11 allows remote authenticated users to cause a denial of service (resource exhaustion) via a large number of active sessions, which exceeds ICP's maximum.