CVE-2025-55070
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-11-14
Last updated on: 2025-11-17
Assigner: Mattermost, Inc.
Description
Description
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mattermost | mattermost_server | to 11.0.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-306 | The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in Mattermost versions prior to 11, where the software fails to enforce multi-factor authentication (MFA) on WebSocket connections. This flaw allows unauthenticated users to access sensitive information through WebSocket events.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized access to sensitive information without proper authentication, potentially exposing confidential data and compromising the security of the affected Mattermost instance.
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