4.3 Medium
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
4.3 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
14.2%
Mattermost fails to scope the WebSocket response around notified usersย to a each user separately resulting in theย WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.
4.3 Medium
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
4.3 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
14.2%