#VU50729 Stored cross-site scripting in McAfee Endpoint Security (ENS) - CVE-2021-23881

Vulnerability identifier: #VU50729

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-2021-23881

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
McAfee Endpoint Security (ENS)
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: McAfee

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 ePO extension. A remote authenticated attacker can inject 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

McAfee Endpoint Security (ENS): before 10.6.1 February 2021 Update

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External links
https://kc.mcafee.com/corporate/index?page=content&id=SB10345

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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.