CVE-2023-44270 (Medium) detected in postcss-8.3.6.tgz

[mend-bolt-for-github]

CVE-2023-44270 - Medium Severity Vulnerability

Vulnerable Library - postcss-8.3.6.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-8.3.6.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/postcss-safe-parser/node_modules/postcss/package.json,/node_modules/purgecss/node_modules/postcss/package.json

Dependency Hierarchy:

• postcss7-compat-2.0.3.tgz (Root Library)
  • postcss-purgecss-3.1.3.tgz
    • purgecss-3.1.3.tgz
      • ❌ postcss-8.3.6.tgz (Vulnerable Library)

Found in HEAD commit: d2f99360d66b8cf17f749349a6d14d1fbd480afa

Found in base branch: main

Vulnerability Details

An issue was discovered in PostCSS before 8.4.31. The vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being included in a comment.

Publish Date: 2023-09-29

URL: CVE-2023-44270

CVSS 3 Score Details (5.3)

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: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.cve.org/CVERecord?id=CVE-2023-44270

Release Date: 2023-09-29

Fix Resolution: postcss - 8.4.31

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