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CVE-2020-14456

7.3 · HIGH
Published Jun 19, 2020 mattermost CWE-346 EPSS 0.43% (35th pctl)

Overview

CVE-2020-14456 is a high-severity vulnerability affecting mattermost mattermost_desktop. It was published on June 19, 2020 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

An issue was discovered in Mattermost Desktop App before 4.4.0. The Same Origin Policy is mishandled during access-control decisions for web APIs, aka MMSA-2020-0006.

Remediation

Check the references section for vendor advisories and patches from mattermost. Update mattermost_desktop to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
mattermost mattermost_desktop >= 0, < 4.4.0 Affected

Frequently Asked Questions

What is CVE-2020-14456?

CVE-2020-14456 is a high-severity vulnerability affecting mattermost mattermost_desktop. It was published on June 19, 2020 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2020-14456?

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-14456?

Check the references section for vendor advisories and patches from mattermost. Update mattermost_desktop to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-14456?

CyberStrike's AI-powered security agents can automatically detect CVE-2020-14456 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.