GHSA-pj6f-rc94-gw53

Source

https://github.com/advisories/GHSA-pj6f-rc94-gw53

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/08/GHSA-pj6f-rc94-gw53/GHSA-pj6f-rc94-gw53.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-pj6f-rc94-gw53

Aliases

CVE-2025-6465

Published

2025-08-21T18:31:29Z

Modified

2025-08-22T19:29:42.497781Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator

Summary

Mattermost Fails to Sanitize File Names

Details

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.

Database specific

{
    "github_reviewed_at": "2025-08-22T16:58:51Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-22"
    ],
    "nvd_published_at": "2025-08-21T17:15:32Z",
    "github_reviewed": true
}

References

Affected packages

Go / github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

10.8.0

Fixed

10.8.4

Database specific

{
    "last_known_affected_version_range": "<= 10.8.3"
}

Go / github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

10.5.0

Fixed

10.5.9

Database specific

{
    "last_known_affected_version_range": "<= 10.5.8"
}

Go / github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

10.9.0

Fixed

10.9.4

Database specific

{
    "last_known_affected_version_range": "<= 10.9.3"
}

Go / github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

10.10.0

Fixed

10.10.1

Affected versions

10.*

10.10.0

Go / github.com/mattermost/mattermost/server/v8

Package

Name: github.com/mattermost/mattermost/server/v8; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

8.0.0-20250708173752-d6b35c41f0ae5