CVE-2020-14457 – github.com/mattermost/mattermost-server/v5

Package

Manager: go
Name: github.com/mattermost/mattermost-server/v5
Vulnerable Version: >=0 <5.20.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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

EPSS: 0.00237 pctl0.46703

Details

Mattermost Server Sensitive Data Exposure An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the `update_team` WebSocket event, aka MMSA-2020-0012.

Metadata

Created: 2022-05-24T17:21:17Z
Modified: 2025-08-14T21:22:40Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-j2h2-cvwh-cr64/GHSA-j2h2-cvwh-cr64.json
CWE IDs: ["CWE-862"]
Alternative ID: GHSA-j2h2-cvwh-cr64
Finding: F039
Auto approve: 1