PT-2020-8416 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2025-12-15 · CVE-2017-18870

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Mattermost Server versions prior to 4.5.0 Mattermost Server version 4.4.5 Mattermost Server version 4.3.4

Description: The issue concerns the mishandling of webhook access control in the EnableOnlyAdminIntegrations case.

Recommendations: For versions prior to 4.5.0, update to version 4.5.0 or later. For version 4.4.5, update to version 4.5.0 or later. For version 4.3.4, update to version 4.5.0 or later.

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2017-18870

GHSA-9J9J-MM2R-9RFM

GO-2025-4183

SUSE-SU-2025:4395-1

Affected Products

Mattermost Server

References · 44

• https://nvd.nist.gov/vuln/detail/CVE-2017-18870 · Security Note
• https://osv.dev/vulnerability/CVE-2017-18870 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/GO-2025-4183 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4395-1 · Vendor Advisory
• https://suse.com/security/cve/CVE-2017-18884 · Note
• https://suse.com/security/cve/CVE-2017-18871 · Note
• https://suse.com/security/cve/CVE-2025-12756 · Note
• https://suse.com/security/cve/CVE-2025-65025 · Note
• https://suse.com/security/cve/CVE-2025-13870 · Note
• https://suse.com/security/cve/CVE-2025-66564 · Note
• https://suse.com/security/cve/CVE-2025-61727 · Note
• https://suse.com/security/cve/CVE-2025-64443 · Note
• https://suse.com/security/cve/CVE-2025-13353 · Note
• https://suse.com/security/cve/CVE-2025-64761 · Note