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CVE-2022-21222

5.3 · MEDIUM

The package css-what before 2.1.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the usage of insecure regular expression in the re_attr variable of index.js.

Published Sep 30, 2022CWE-1333EPSS 1.90%

Overview

CVE-2022-21222 is a medium-severity vulnerability. It was published on September 30, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The package css-what before 2.1.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the usage of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12Reflists.debian.org/debian-lts-announce/2023/03/msg00001.htmlRefsecurity.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488GitHubgithub.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12Reflists.debian.org/debian-lts-announce/2023/03/msg00001.htmlRefsecurity.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488

How CyberStrike helps

Frequently asked questions

What is CVE-2022-21222?

CVE-2022-21222 is a medium-severity vulnerability. It was published on September 30, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2022-21222?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-21222?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-21222?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-21222 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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