CVE-2021-1724 Microsoft Dynamics Business Central Cross-site Scripting Vulnerability

Medium 6.1 Published 25 Feb 2021 Updated 3 Aug 2024

An attacker can inject malicious scripts into Microsoft Dynamics Business Central, potentially executing code or stealing data from users.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-1724?

CVE-2021-1724 is a medium-severity cross-site scripting vulnerability in Microsoft Dynamics 365 Business Central 2019 Release Wave 2 (On-Premise), published on 25 Feb 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Microsoft Dynamics Business Central Cross-site Scripting Vulnerability

Weakness: CWE-79

Which versions are affected by CVE-2021-1724?

It affects 2 products.

Products include Microsoft Dynamics 365 Business Central, Microsoft Dynamics Nav.

How do I fix CVE-2021-1724?

No fix has been published for CVE-2021-1724 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-1724 being exploited?

There is no known exploitation of CVE-2021-1724 in the wild and no public exploit code.

Sources

Also known as GHSA-8qq3-mrrg-37qg.