PT-2020-10827 · Github+1 · Github Plugin+1

Published 2020-06-19 · Updated 2021-07-21 · CVE-2019-20864

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Mattermost Plugins versions prior to 5.13.0

Description An issue was discovered that allows an attacker to attach their Mattermost account to a different person's GitHub account through the GitHub plugin.

Recommendations For versions prior to 5.13.0, update to version 5.13.0 or later to resolve the issue. As a temporary workaround, consider disabling the GitHub plugin until a patch is available. Restrict access to the GitHub plugin to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2019-20864

Affected Products

Github Plugin

Mattermost Plugins

References · 3

• https://osv.dev/vulnerability/CVE-2019-20864 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20864 · Security Note