PT-2020-8000 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2025-11-07 · CVE-2016-11071

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Mattermost Server versions prior to 3.1.0

Description: The issue allows for XSS attacks due to the absence of noreferrer and noopener protection mechanisms.

Recommendations: For versions prior to 3.1.0, update to version 3.1.0 or later to resolve the issue.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2016-11071

GHSA-H3QG-W9J5-WH3M

GO-2025-4058

OPENSUSE-SU-2025:15710-1

Affected Products

Mattermost Server

References · 80

• https://nvd.nist.gov/vuln/detail/CVE-2016-11071 · Security Note
• https://osv.dev/vulnerability/CVE-2016-11071 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-h3qg-w9j5-wh3m · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15710-1 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2025-4058 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://github.com/mattermost/mattermost · Note
• https://suse.com/security/cve/CVE-2025-58356 · Note
• https://suse.com/security/cve/CVE-2025-61141 · Note
• https://suse.com/security/cve/CVE-2025-64102 · Note
• https://suse.com/security/cve/CVE-2025-62375 · Note
• https://suse.com/security/cve/CVE-2016-11074 · Note
• https://suse.com/security/cve/CVE-2025-58075 · Note
• https://suse.com/security/cve/CVE-2016-11072 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-11071 · Note