Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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History
Thu, 02 Oct 2025 20:00:00 +0000
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| First Time appeared |
Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:mattermost_server:10.10.0:-:*:*:*:*:*:* |
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| Vendors & Products |
Mattermost mattermost Server
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Sat, 23 Aug 2025 11:00:00 +0000
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| First Time appeared |
Mattermost
Mattermost mattermost |
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| Vendors & Products |
Mattermost
Mattermost mattermost |
Thu, 21 Aug 2025 18:15:00 +0000
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| Metrics |
ssvc
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Thu, 21 Aug 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs. | |
| Title | Path traversal in image upload with preview overwrite | |
| Weaknesses | CWE-22 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published: 2025-08-21T17:01:42.866Z
Updated: 2025-08-21T17:30:45.951Z
Reserved: 2025-06-21T00:52:35.389Z
Link: CVE-2025-6465
Updated: 2025-08-21T17:21:05.309Z
Status : Analyzed
Published: 2025-08-21T17:15:32.707
Modified: 2025-10-02T19:49:46.293
Link: CVE-2025-6465
No data.