Main Vulnerability Database Vulnerabilities #VU30198

Incorrect permission assignment for critical resource in Mattermost Server - CVE-2017-18886

Published: June 19, 2020 / Updated: July 17, 2020

Vulnerability identifier: #VU30198

CSH Severity: High

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2017-18886

CWE-ID: CWE-732

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Mattermost, Inc.

Affected software:
Mattermost Server

Detailed vulnerability description

The vulnerability allows a remote authenticated user to execute arbitrary code.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows a bypass of restrictions on use of slash commands.

Install update from vendor's website.