CVE-2022-21222

Public Exploit
Regular Expression Denial of Service (ReDoS)

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.20%
Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a css-what
Published at:
Updated at:

References

Link Tags
https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488 third party advisory exploit
https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12 third party advisory broken link
https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html mailing list

Frequently Asked Questions

What is the severity of CVE-2022-21222?
CVE-2022-21222 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21222?
To fix CVE-2022-21222, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21222 being actively exploited in the wild?
It is possible that CVE-2022-21222 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21222?
CVE-2022-21222 affects n/a css-what.
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