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

[mend-bolt-for-github[bot]]

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: /web/package.json

Path to vulnerable library: /web/node_modules/css-loader/node_modules/postcss/package.json,/web/node_modules/css-minimizer-webpack-plugin/node_modules/postcss/package.json,/web/node_modules/gatsby/node_modules/postcss/package.json,/studio/node_modules/postcss/package.json

Dependency Hierarchy: - core-2.19.2.tgz (Root Library) - webpack-integration-2.19.0.tgz - :x: **postcss-8.3.6.tgz** (Vulnerable Library)

Found in HEAD commit: a29385d9c353a211b294fc0dbef886077a159456

Found in base branch: master

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

Direct dependency fix Resolution (@sanity/core): 2.20.1-canary.113

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