PT-2020-10826 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2020-06-26 · CVE-2019-20863

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 Server versions prior to 5.13.0

Description An issue was discovered where incoming webhook creation is not properly restricted.

Recommendations For versions prior to 5.13.0, update to version 5.13.0 or later to resolve the issue.

Fix

Related Identifiers

CVE-2019-20863

Affected Products

Mattermost Server

References · 3

• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-20863 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20863 · Security Note