CVE-2021-33587 (High) detected in css-what-3.3.0.tgz

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CVE-2021-33587 - High Severity Vulnerability

Vulnerable Library - css-what-3.3.0.tgz

a CSS selector parser

Library home page: https://registry.npmjs.org/css-what/-/css-what-3.3.0.tgz

Dependency Hierarchy: - optimize-css-assets-webpack-plugin-5.0.4.tgz (Root Library) - cssnano-4.1.10.tgz - cssnano-preset-default-4.0.7.tgz - postcss-svgo-4.0.2.tgz - svgo-1.3.2.tgz - css-select-2.1.0.tgz - :x: **css-what-3.3.0.tgz** (Vulnerable Library)

Found in HEAD commit: 57add7b0a1f99c21ea28094adb747d0addd0a984

Found in base branch: master

Vulnerability Details

The css-what package 4.0.0 through 5.0.0 for Node.js does not ensure that attribute parsing has Linear Time Complexity relative to the size of the input.

Publish Date: 2021-05-28

URL: CVE-2021-33587

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-2021-33587

Release Date: 2021-05-28

Fix Resolution (css-what): 5.0.1

Direct dependency fix Resolution (optimize-css-assets-webpack-plugin): 5.0.5