GHSA-85jj-c9jr-9jhx
Mattermost Improper Access Control vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/mattermost/mattermost/server/v8 | >= 9.1.0, < 9.1.1 | 9.1.1 |
| Go | github.com/mattermost/mattermost/server/v8 | >= 9.0.0, < 9.0.2 | 9.0.2 |
| Go | github.com/mattermost/mattermost/server/v8 | < 8.1.4 | 8.1.4 |
| Go | github.com/mattermost/mattermost-server/v6 | < 7.8.13 | 7.8.13 |
Details
As written in the advisory (Markdown source, shown as plain text).
Mattermost fails to perform proper authorization in the `/plugins/focalboard/api/v2/users` endpoint allowing an attacker who is a guest user and knows the ID of another user to get their information (e.g. name, surname, nickname) via Mattermost Boards.
References
External links from the advisory. They lead to third-party sites.