What is GHSA-j2h2-cvwh-cr64?

GHSA-j2h2-cvwh-cr64 is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost Server Sensitive Data Exposure

Which CVE IDs does GHSA-j2h2-cvwh-cr64 cover?

GHSA-j2h2-cvwh-cr64 covers the following CVE IDs: CVE-2020-14457. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-j2h2-cvwh-cr64?

GHSA-j2h2-cvwh-cr64 has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

Which products are affected by GHSA-j2h2-cvwh-cr64?

GHSA-j2h2-cvwh-cr64 affects 1 product, including: go/github.com/mattermost/mattermost-server/v5:\u003c 5.20.0.

GHSA-j2h2-cvwh-cr64MediumCVSS 5.3

Mattermost Server Sensitive Data Exposure

Vendor

GitHub Security Advisories

Published

May 24, 2022

Last Modified

August 14, 2025

🔗 CVE IDs covered (1)

CVE-2020-14457 →

📋 Description

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.

🎯 Affected products1

go/github.com/mattermost/mattermost-server/v5:< 5.20.0

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2020-14457
https://github.com/mattermost/mattermost/pull/13848
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-j2h2-cvwh-cr64