GitHub Advisoryadvisory · Go

GHSA-h8qw-xqm9-q66j Mattermost Server is vulnerable to XSS through customizable theme color-code values

MEDIUM Published 2022-05-24 Modified 2025-10-22 Official page ↗

Aliases: CVE-2016-11070
Ecosystem: Go
Packages: github.com/mattermost/mattermost-server
Severity: Moderate
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/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 via theme color-code values.

Related

Alias · CVE (1)

CVE-2016-11070 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