CVE-2025-41443
BaseFortify
Publication date: 2025-10-16
Last updated on: 2025-10-29
Assigner: Mattermost, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mattermost | mattermost_server | From 10.5.0 (inc) to 10.5.11 (exc) |
| mattermost | mattermost_server | From 10.11.0 (inc) to 10.11.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in Mattermost versions 10.5.x up to 10.5.10 and 10.11.x up to 10.11.2, where guest user permissions are not properly validated when accessing channel information. This flaw allows guest users to discover active public channels and their metadata by using the /api/v4/teams/{team_id}/channels/ids endpoint.
How can this vulnerability impact me? :
The vulnerability can impact you by allowing guest users to gain unauthorized visibility into active public channels and their metadata, potentially exposing information that should not be accessible to guests. This could lead to information disclosure risks within your Mattermost environment.