PT-2020-14017 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2024-08-20 · CVE-2020-14457

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV: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 5.20.0

Description An issue was discovered in Mattermost Server where non-members can receive broadcasted team details via the update team WebSocket event.

Recommendations For versions prior to 5.20.0, update to version 5.20.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the update team WebSocket event until a patch is available.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

BIT-MATTERMOST-2020-14457

CVE-2020-14457

GHSA-J2H2-CVWH-CR64

GO-2023-1939

Affected Products

Mattermost Server

References · 11

• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/GO-2023-1939 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mattermost-2020-14457 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14457 · Security Note
• https://osv.dev/vulnerability/GHSA-j2h2-cvwh-cr64 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-14457 · Vendor Advisory
• https://github.com/mattermost/mattermost · Note
• https://github.com/mattermost/mattermost/pull/13848 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14457 · Note
• https://github.com/advisories/GHSA-j2h2-cvwh-cr64 · Note
• https://t.me/cvenotify/4506 · Telegram Post