GitHub Advisoryadvisory · Go

GHSA-8qg8-c7mw-6fj7 Mattermost Server is vulnerable to Directory Traversal by System Admins

MEDIUM Published 2022-05-24 Modified 2025-11-20 Official page ↗
Aliases
CVE-2017-18874
Ecosystem
Go
Packages
github.com/mattermost/mattermost-server
Severity
Moderate
Weaknesses
CWE-22
Reviewed
2025-11-20

Affected packages

• Go github.com/mattermost/mattermost-server: < 4.1.2-0.20171004201910-6be8113eb60 → fixed in 4.1.2-0.20171004201910-6be8113eb60 • Go github.com/mattermost/mattermost-server: >= 4.2.0-rc1, < 4.2.1-0.20171004194140-6d3cb2ce07fc → fixed in 4.2.1-0.20171004194140-6d3cb2ce07fc • Go github.com/mattermost/mattermost-server: >= 4.3.0-rc1, < 4.3.0 → fixed in 4.3.0

Description

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal.

Related

Alias · CVE (1)

  • CVE-2017-18874 An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. vulnerability

Weakness · CWE (1)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness

References