CVE-2021-40440 Microsoft Dynamics Business Central Cross-site Scripting Vulnerability
Attackers can inject malicious scripts into Microsoft Dynamics 365 Business Central, potentially compromising user sessions and data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-40440?
CVE-2021-40440 is a medium-severity cross-site scripting vulnerability in Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.10, published on 15 Sep 2021. Any signed-in user can exploit it over the 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-2021-40440?
It affects 1 product.
Products include Microsoft Dynamics 365 Business Central.
How do I fix CVE-2021-40440?
No fix has been published for CVE-2021-40440 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-2021-40440 being exploited?
There is no known exploitation of CVE-2021-40440 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.10
- CVE-2024-38225 Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability
- CVE-2024-35249 Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability
- CVE-2022-41127 Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution Vulnerability
- CVE-2024-43460 Dynamics 365 Business Central Elevation of Privilege Vulnerability
- CVE-2024-21380 Microsoft Dynamics Business Central/NAV Information Disclosure Vulnerability
Sources
Also known as GHSA-7hv9-m3f4-mcw5.