PT-2020-8448 · Mattermost · Mattermost Server

CVE-2017-18902

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Published

2020-06-19

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Updated

2026-07-30

CVSS v3.1

5.3

Medium

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Name of the Vulnerable Software and Affected Versions: Mattermost Server versions prior to 4.1.0 Mattermost Server version 4.0.4 and earlier Mattermost Server version 3.10.3 and earlier
Description: An issue allows attackers to discover team invite IDs via "team API endpoints".
Recommendations: For versions prior to 4.1.0, update to version 4.1.0 or later. For version 4.0.4 and earlier, update to version 4.0.5 or later, or to version 4.1.0 or later. For version 3.10.3 and earlier, update to version 3.10.4 or later, or to version 4.1.0 or later.

Fix

Information Disclosure

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Weakness Enumeration

Related Identifiers

CVE-2017-18902
GHSA-JWFV-5HWQ-F97R
GO-2025-4185
OPENSUSE-SU-2026:21483-1
SUSE-SU-2025:4395-1

Affected Products

Mattermost Server