Vulnerability identifier: #VU27052

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-11022

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
jQuery
Web applications / JS libraries

Vendor: The jQuery Team

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 regex operation in "jQuery.htmlPrefilter". A remote attacker can pass specially crafted data to the application that uses .html()</code>, <code>.append() or similar methods for it and execute arbitrary JavaScript 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

jQuery: 1.2 - 3.4.1

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CPE

• cpe:2.3:a:jquery:jquery:3.4.1:*:*:*:*:*:*:*

External links
http://snyk.io/vuln/SNYK-JS-JQUERY-565129
http://github.com/jquery/jquery/commit/1d61fd9407e6fbe82fe55cb0b938307aa0791f77
http://blog.jquery.com/2020/04/10/jquery-3-5-0-released/
http://github.com/advisories/GHSA-gxr4-xjj5-5px2

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?