CVE-2025-9079

Published Sep 19, 2025

Last updated 2 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-9079 is a path traversal vulnerability affecting Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, and 10.9.x <= 10.9.3. The vulnerability stems from a failure to validate the import directory path configuration. This flaw allows admin users to execute arbitrary code by uploading malicious plugins to the prepackaged plugins directory. Exploitation could lead to complete system compromise, unauthorized access, data manipulation, or service disruption. Patches are available for the vulnerability in versions 10.8.4, 10.5.9, 9.11.18, 10.10.2, and 10.9.4.

Description
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to validate import directory path configuration which allows admin users to execute arbitrary code via malicious plugin upload to prepackaged plugins directory
Source
responsibledisclosure@mattermost.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
8
Impact score
6
Exploitability score
1.3
Vector string
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Severity
HIGH

Weaknesses

responsibledisclosure@mattermost.com
CWE-22

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.