Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories.
                
            Metrics
Affected Vendors & Products
References
        | Link | Providers | 
|---|---|
| https://mattermost.com/security-updates | 
                     | 
            
History
                    Mon, 25 Aug 2025 15:00:00 +0000
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| First Time appeared | 
        
        Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products | 
        
        Mattermost mattermost Server
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Thu, 21 Aug 2025 15:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | 
        
        ssvc
         
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Thu, 21 Aug 2025 12:45:00 +0000
| Type | Values Removed | Values Added | 
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| First Time appeared | 
        
        Mattermost
         Mattermost mattermost  | 
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| Vendors & Products | 
        
        Mattermost
         Mattermost mattermost  | 
Thu, 21 Aug 2025 08:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories. | |
| Title | Path Traversal in Template Upload Allows Uploading Files Outside Target Directory | |
| Weaknesses | CWE-22 | |
| References | 
         | |
| Metrics | 
        
        cvssV3_1
         
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Status: PUBLISHED
Assigner: Mattermost
Published: 2025-08-21T07:51:37.130Z
Updated: 2025-08-21T14:50:55.341Z
Reserved: 2025-07-22T08:03:06.489Z
Link: CVE-2025-8023
Updated: 2025-08-21T14:50:52.599Z
Status : Analyzed
Published: 2025-08-21T08:15:30.720
Modified: 2025-08-25T14:56:33.503
Link: CVE-2025-8023
No data.