GitHub Advisoryadvisory · Go

GHSA-h3qg-w9j5-wh3m Mattermost Server is vulnerable to XSS through lack of link relationship attributes `noreferrer` and `noopener`

MEDIUM Published 2022-05-24 Modified 2025-10-22 Official page ↗
Aliases
CVE-2016-11071
Ecosystem
Go
Packages
github.com/mattermost/mattermost-server
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2025-10-22

Affected packages

• Go github.com/mattermost/mattermost-server: < 3.1.0 → fixed in 3.1.0

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.

Related

Alias · CVE (1)

  • CVE-2016-11071 An issue was discovered in Mattermost Server before 3.1.0. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References