CVE-2023-1775
MEDIUM6.5EPSS 0.31%Mattermost vulnerable to information disclosure
Published: 3/31/2023Modified: 4/3/2025
Description
When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
Affected packages (4)
- Bitnami/mattermostfrom 0, < 7.1.6 | >= 7.7.1, <= 7.7.1
- Go/github.com/mattermost/mattermost-server>= 3.3.0, < 7.1.6
- Go/github.com/mattermost/mattermost-server/v5>= 5.0.0, < 7.1.6
- Go/github.com/mattermost/mattermost-server/v6>= 6.0.0, < 7.1.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |