What is GHSA-h3qg-w9j5-wh3m?

GHSA-h3qg-w9j5-wh3m is a security advisory published by GitHub Security Advisories with Medium severity. Mattermost Server is vulnerable to XSS through lack of link relationship attributes `noreferrer` and `noopener`

Which CVE IDs does GHSA-h3qg-w9j5-wh3m cover?

GHSA-h3qg-w9j5-wh3m covers the following CVE IDs: CVE-2016-11071. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-h3qg-w9j5-wh3m?

GHSA-h3qg-w9j5-wh3m has a CVSS v3 base score of 6.1, published by GitHub Security Advisories.

Which products are affected by GHSA-h3qg-w9j5-wh3m?

GHSA-h3qg-w9j5-wh3m affects 1 product, including: go/github.com/mattermost/mattermost-server:\u003c 3.1.0.

GHSA-h3qg-w9j5-wh3mMediumCVSS 6.1

Mattermost Server is vulnerable to XSS through lack of link relationship attributes `noreferrer` and `noopener`

Vendor

GitHub Security Advisories

Published

May 24, 2022

Last Modified

October 22, 2025

🔗 CVE IDs covered (1)

CVE-2016-11071 →

📋 Description

An issue was discovered in Mattermost Server before 3.1.0. It allows XSS because the noreferrer and noopener protection mechanisms were not in place.

🎯 Affected products1

go/github.com/mattermost/mattermost-server:< 3.1.0

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2016-11071
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-h3qg-w9j5-wh3m