CVE-2025-58075

HIGH

Mattermost 10.5.0-10.5.10 10.10.0-10.10.2 10.11.0-10.11.1 - Unauthenticated Team Join via RelayState Manipulation

Title source: llm
STIX 2.1

Description

Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState

References (1)

Core 1
Core References

Scores

CVSS v3 8.1
EPSS 0.0005
EPSS Percentile 15.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-862
Status published
Products (3)
mattermost/mattermost 0 - 8.0.0-20250815100400-2d5cdc6e217eGo
mattermost/mattermost-server 10.11.0 - 10.11.2Go
mattermost/mattermost_server 10.5.0 - 10.5.11
Published Oct 16, 2025
Tracked Since Feb 18, 2026