GHSA-p28h-cc7q-c4fg

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    GHSA-p28h-cc7q-c4fg

    Published: 1 Oct 2022Last Modified: 20 May 2025

    Summary: css-what vulnerable to ReDoS due to use of insecure regular expression

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

    References: https://nvd.nist.gov/vuln/detail/CVE-2022-21222, https://github.com/fb55/css-what/commit/dc510929790da6617e7aa93a616498b22f6a6b72, https://github.com/fb55/css-what, https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js#23L12, https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12, https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html, https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488

    Affected packages

    Package

    Name: css-what

    Purl: pkg:npm/css-what

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.1.3

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-p28h-cc7q-c4fg | CVE-DB