CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
14.0%
github.com/mattermost/mattermost/ is vulnerable to Insufficient Authorization. The vulnerability is caused due to insufficient scoping of WebSocket responses to authorised users, resulting in Websocket responses being broadcasted to everyone in the channel.