#VU55732 Cross-site scripting in Dynamics NAV and Microsoft Dynamics 365 Business Central - CVE-2021-36946


Vulnerability identifier: #VU55732

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-36946

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Dynamics NAV
Web applications / CRM systems
Microsoft Dynamics 365 Business Central
Web applications / CRM systems

Vendor: Microsoft

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the Microsoft Dynamics Business Central. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Dynamics NAV: 2017 - 2018

Microsoft Dynamics 365 Business Central: 2019 Spring Update - 2020 Release Wave 2 - Update 17.9


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36946


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability