CVE-2025-8023 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Mattermost	Mattermost

No data.

No data.

References

Link	Providers
https://mattermost.com/security-updates

History

Thu, 21 Aug 2025 15:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 21 Aug 2025 12:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mattermost Mattermost mattermost
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		https://mattermost.com/security-updates
Metrics		cvssV3_1 `{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N'}`

MITRE

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

Vulnrichment

Updated: 2025-08-21T14:50:52.599Z

NVD

Status : Awaiting Analysis

Published: 2025-08-21T08:15:30.720

Modified: 2025-08-22T18:09:17.710

Link: CVE-2025-8023

Redhat

No data.

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