#VU67156 Missing Authorization in jsdom - CVE-2021-20066

Vulnerability identifier: #VU67156

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-20066

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
jsdom
Web applications / JS libraries

Vendor: jsdom

Description

The vulnerability allows a remote attacker to manipulate local files.

The vulnerability exists due to JSDom improperly allows the loading of local resources. A remote attacker can manipulate local files using a malicious web page when script execution is enabled.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

jsdom: 16.4.0

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External links
https://www.tenable.com/security/research/tra-2021-05
https://github.com/jsdom/jsdom/issues/3124#issuecomment-783502951

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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