CVE-2025-3446CWE-863

Members Without Guest Invite Permissions Can Add Guests to Teams

Medium · published May 15, 2025

CVSS v3.1
4.3
EPSS
0%
Percentile
16.1
In the wild
Unconfirmed
What it is

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00255 · 16.1th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2025-05-15T10:43Z
EPSS history
Timeline
  • 15 MAY 10:43Z
    Members Without Guest Invite Permissions Can Add Guests to Teams
    cvelistv5