Executive brief
Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost
Affected products
- Go github.com/mattermost/mattermost
- Go github.com/mattermost/mattermost-server/v5
- Go github.com/mattermost/mattermost-server
Junglewise Threat Intelligence
CVE-2020-14457: GO-2023-1939 - Mattermost Server Sensitive Data Exposure in github.com/mattermost/mattermost
CVE-2020-14457 · Severity: low · CVSS 3.1 · Published 2024-08-20
Technologies: github.com/mattermost/mattermost (Go), github.com/mattermost/mattermost-server/v5 (Go), github.com/mattermost/mattermost-server (Go). Vendors: Go.
Related threats
- GO-2026-5663 - Mattermost doesn't validate decompressed archive entry sizes during file extraction in github.com/mattermost/mattermost-server
- GO-2026-5512 - Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope in github.com/mattermost/mattermost
- GO-2026-5629 - Mattermost doesn't properly validate CSRF tokens in github.com/mattermost/mattermost-server
- GO-2026-5495 - Mattermost doesn't validate CSRF tokens on an authentication endpoint in github.com/mattermost/mattermost-server
- GO-2026-5360 - Mattermost allows attackers to take over arbitrary user accounts via overly permissive substring matching flaw in github.com/mattermost/matt