CVE-2016-11065

An issue was discovered in Mattermost Server before 3.3.0. An attacker could use the WebSocket feature to send pop-up messages to users or change a post's appearance...

Unspecified Vulnerability in Mattermost Server (CNVD-2020-35455)

Mattermost Server is the United States Mattermost company's set of open source messaging platform. A security vulnerability exists in Mattermost Server versions prior to 3.3.0. An attacker could exploit the vulnerability by using the WebSocket feature to send a pop-up message to a user or change...