CVE-2025-36530 - CVE House
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Status published Medium CVE-2025-36530

Import Path Traversal Enables Unauthorized Unsigned Plugin Installation

Vulnerability Description

Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Dawid Kulikowski (daw10)

References

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Affected Vendor

Affected Software

Mattermost
Vulnerable Versions:
10.9.0, 10.8.0, 10.5.0, 9.11.0, 10.10.0, 10.9.2, 10.8.4, 10.5.9, 9.11.18

Timeline

Official Publish: August 21st, 2025
Last Modified: August 21st, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Weaknesses (CWE)

CWE-22

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1005 Data from Local System
Collection
T1552 Unsecured Credentials
Credential Access
T1565.001 Stored Data Manipulation
Impact