PT-2020-14016 · Mattermost · Mattermost Desktop App

Published 2020-06-19 · Updated 2020-06-25 · CVE-2020-14456

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Mattermost Desktop App versions prior to 4.4.0

Description An issue was discovered where the Same Origin Policy is mishandled during access-control decisions for web APIs.

Recommendations For versions prior to 4.4.0, update to version 4.4.0 or later to resolve the issue. As a temporary workaround, consider restricting access to web APIs to minimize the risk of exploitation.

Fix

Origin Validation Error

Weakness Enumeration

CWE-346

Related Identifiers

CVE-2020-14456

Affected Products

Mattermost Desktop App

References · 4

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14456 · Security Note
• https://osv.dev/vulnerability/CVE-2020-14456 · Vendor Advisory
• https://t.me/cvenotify/4505 · Telegram Post