CVE-2020-17147: Dynamics CRM Webclient Cross-site Scripting Vulnerability

Overview

Severity

High (CVSS 8.7)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Dec

Released

2020-12-08

EPSS Score

0.61% (percentile: 69.8%)

FAQ

What privileges are required to exploit this vulnerability? To exploit this vulnerability, an attacker would be required to have a System Customizer OR Administrator role.

Affected Products (2)

Microsoft Dynamics

• Microsoft Dynamics 365 (on-premises) version 8.2
• Microsoft Dynamics 365 (on-premises) version 9.0

Security Updates (2)

• 4595462
• 4595459

Acknowledgments

<a href="https://twitter.com/soaj1664ashar">Ashar Javed</a> of <a href="https://www.hyundai-autoever.eu/">Hyundai AutoEver Europe GmbH</a>

Revision History

• 2020-12-08: Information published.