CVE-2022-21222 (High) detected in css-what-2.1.0.tgz

[mend-bolt-for-github]

CVE-2022-21222 - High Severity Vulnerability

Vulnerable Library - css-what-2.1.0.tgz

a CSS selector parser

Library home page: https://registry.npmjs.org/css-what/-/css-what-2.1.0.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/css-what/package.json

Dependency Hierarchy:

• react-scripts-1.1.4.tgz (Root Library)
  • html-webpack-plugin-2.29.0.tgz
    • pretty-error-2.1.1.tgz
      • renderkid-2.0.1.tgz
        • css-select-1.2.0.tgz
          • ❌ css-what-2.1.0.tgz (Vulnerable Library)

Found in HEAD commit: 0e43f8a8784f998d39b6419534b6a54485225e6e

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2022-09-30

URL: CVE-2022-21222

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21222

Release Date: 2022-09-30

Fix Resolution (css-what): 2.1.3

Direct dependency fix Resolution (react-scripts): 1.1.5

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