Description
Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected products
- Mattermost / Mattermost Plugins0 – 7.8.5
- Mattermost / Mattermost Plugins0 – 7.10.2
- Mattermost / Mattermost Plugins7.8.6 – 7.8.6
- Mattermost / Mattermost Plugins7.10.3 – 7.10.3