CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
github.com/mattermost/mattermost-server is vulnerable to Information Disclosure. The vulnerability is due to a failure to properly sanitize the recipients of a webhook event, allowing attackers monitoring webhook events to retrieve the channel IDs of archived or restored channels.