CVE-2023-6202
MEDIUM4.3EPSS 0.23%Mattermost Improper Access Control vulnerability
Published: 11/27/2023Modified: 2/4/2026
Description
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.
Affected packages (2)
- Go/github.com/mattermost/mattermost-server/v6from 0, < 7.8.13
- Go/github.com/mattermost/mattermost/server/v8>= 9.1.0, < 9.1.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |