Moole Vulnerability Database

Find real vulnerabilities before they ship

High

CVE-2025-55070

Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events

VectorNETWORK

PublishedNov 14, 2025, 08:15

Published Byresponsibledisclosure@mattermost.com

Base Score

Score7.5

Affected Versions

Package (Ecosystem)IntroducedFixedLimit

github.com/mattermost/mattermost-server(Go)011.1.0N/A

github.com/mattermost/mattermost/server/v8(Go)08.0.0-20250912063506-7d8b7b5e4a60N/A

References

https://mattermost.com/security-updates

Weakness Type

CWE-306

CVSS Metrics

Base Score

7.5

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Base SeverityHigh

Version

3.1

Attack Vector (AV)

NETWORK