CVE-2025-4128

low

Description

Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team information, allowing guest users to bypass permissions and view information about public teams they are not members of via a direct API call to /api/v4/teams/{team_id}.

References

https://mattermost.com/security-updates

Details

Source: Mitre, NVD

Published: 2025-06-11

Updated: 2025-06-12

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 3.1

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity: Low

EPSS

EPSS: 0.00022