CVE-2025-9081
BaseFortify
Publication date: 2025-09-19
Last updated on: 2025-09-25
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 9.11.0 (inc) to 9.11.17 (exc) |
| mattermost | mattermost_server | From 10.5.0 (inc) to 10.5.9 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-639 | The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. |
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 10.5.8 and 9.11.x up to 9.11.17, where the software fails to properly validate access controls. This flaw allows any authenticated user to download sensitive files by exploiting the board file download endpoint through UUID enumeration.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized access to sensitive files by any authenticated user, potentially exposing confidential information. This could result in data leakage and compromise of sensitive data within the affected Mattermost instance.