CVE-2020-16859: Microsoft Dynamics 365 (On-Premise) Cross Site Scripting Vulnerability
First published: Fri Sep 11 2020(Updated: )
<p>A cross site scripting vulnerability exists when Microsoft Dynamics 365 (on-premises) does not properly sanitize a specially crafted web request to an affected Dynamics server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected Dynamics server.</p> <p>The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current authenticated user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions within Dynamics Server on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.</p> <p>The security update addresses the vulnerability by helping to ensure that Dynamics Server properly sanitizes web requests.</p>
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| =9.0 | ||
| Microsoft Dynamics 365 | =9.0 |
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Frequently Asked Questions
What is CVE-2020-16859?
CVE-2020-16859 is a cross-site scripting vulnerability in Microsoft Dynamics 365 (on-premises) that allows specially crafted web requests to execute malicious scripts.
How severe is CVE-2020-16859?
The severity of CVE-2020-16859 is medium with a CVSS score of 5.4.
What is the affected software for CVE-2020-16859?
The affected software for CVE-2020-16859 is Microsoft Dynamics 365 (on-premises) version 9.0.
How can I fix CVE-2020-16859?
To fix CVE-2020-16859, update Microsoft Dynamics 365 (on-premises) to the latest version and apply any available patches or security fixes.
Where can I find more information about CVE-2020-16859?
You can find more information about CVE-2020-16859 on the Microsoft Security Guidance Advisory page: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16859.
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