PT-2020-14018 · Mattermost · Mattermost Server

CVE-2020-14458 · Published 2020-06-19 · Updated 2024-03-06

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Mattermost Server versions prior to 5.19.0

Description An issue allows attackers to discover private channels via the "get channel by name" API endpoint.

Recommendations For versions prior to 5.19.0, update to version 5.19.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the "get channel by name" API endpoint until a patch is available.

Fix

Related Identifiers

BIT-MATTERMOST-2020-14458

CVE-2020-14458

Affected Products

Mattermost Server

References · 5

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14458 · Security Note
• https://osv.dev/vulnerability/CVE-2020-14458 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mattermost-2020-14458 · Vendor Advisory
• https://t.me/cvenotify/4507 · Telegram Post