CVE-2025-6465

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server:10.10.0:-::::::

History

02 Oct 2025, 19:49

Type	Values Removed	Values Added
References	~~() https://mattermost.com/security-updates -~~	() https://mattermost.com/security-updates - Vendor Advisory
First Time		Mattermost Mattermost mattermost Server
CPE		cpe:2.3:a:mattermost:mattermost_server:::::::: cpe:2.3:a:mattermost:mattermost_server:10.10.0:-::::::

22 Aug 2025, 18:08

Type	Values Removed	Values Added
Summary		(es) Las versiones de Mattermost 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 no pueden depurar los nombres de archivos, lo que permite a los usuarios con permiso de carga de archivos sobrescribir las miniaturas de los archivos adjuntos mediante el path traversal en las API de transmisión de archivos.

21 Aug 2025, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-08-21 17:15

Updated : 2025-10-02 19:49

NVD link : CVE-2025-6465

Mitre link : CVE-2025-6465

CVE.ORG link : CVE-2025-6465

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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