Path to vulnerable library: /node_modules/postcss-normalize-display-values/node_modules/postcss/package.json,/node_modules/postcss-svgo/node_modules/postcss/package.json,/node_modules/postcss-normalize-unicode/node_modules/postcss/package.json,/node_modules/stylehacks/node_modules/postcss/package.json,/node_modules/postcss-normalize-url/node_modules/postcss/package.json,/node_modules/@types/cssnano/node_modules/postcss/package.json,/node_modules/postcss-discard-duplicates/node_modules/postcss/package.json,/node_modules/postcss-reduce-transforms/node_modules/postcss/package.json,/node_modules/postcss-merge-longhand/node_modules/postcss/package.json,/node_modules/postcss-ordered-values/node_modules/postcss/package.json,/node_modules/postcss-minify-selectors/node_modules/postcss/package.json,/node_modules/cssnano/node_modules/postcss/package.json,/node_modules/postcss-normalize-positions/node_modules/postcss/package.json,/node_modules/postcss-calc/node_modules/postcss/package.json,/node_modules/postcss-normalize-repeat-style/node_modules/postcss/package.json,/node_modules/css-declaration-sorter/node_modules/postcss/package.json,/node_modules/postcss-normalize-whitespace/node_modules/postcss/package.json,/node_modules/postcss-normalize-charset/node_modules/postcss/package.json,/node_modules/postcss-minify-font-values/node_modules/postcss/package.json,/node_modules/postcss-minify-gradients/node_modules/postcss/package.json,/node_modules/postcss-reduce-initial/node_modules/postcss/package.json,/node_modules/postcss-minify-params/node_modules/postcss/package.json,/node_modules/postcss-normalize-timing-functions/node_modules/postcss/package.json,/node_modules/postcss-normalize-string/node_modules/postcss/package.json,/node_modules/postcss-colormin/node_modules/postcss/package.json,/node_modules/postcss-convert-values/node_modules/postcss/package.json,/node_modules/cssnano-preset-default/node_modules/postcss/package.json,/node_modules/postcss-discard-overridden/node_modules/postcss/package.json,/node_modules/cssnano-util-raw-cache/node_modules/postcss/package.json,/node_modules/postcss-unique-selectors/node_modules/postcss/package.json,/node_modules/postcss-discard-comments/node_modules/postcss/package.json,/node_modules/postcss-merge-rules/node_modules/postcss/package.json,/node_modules/postcss-discard-empty/node_modules/postcss/package.json
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.
CVE-2023-44270 - Medium Severity Vulnerability
Vulnerable Libraries - postcss-7.0.35.tgz, postcss-8.3.0.tgz
postcss-7.0.35.tgz
Tool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.35.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/postcss-normalize-display-values/node_modules/postcss/package.json,/node_modules/postcss-svgo/node_modules/postcss/package.json,/node_modules/postcss-normalize-unicode/node_modules/postcss/package.json,/node_modules/stylehacks/node_modules/postcss/package.json,/node_modules/postcss-normalize-url/node_modules/postcss/package.json,/node_modules/@types/cssnano/node_modules/postcss/package.json,/node_modules/postcss-discard-duplicates/node_modules/postcss/package.json,/node_modules/postcss-reduce-transforms/node_modules/postcss/package.json,/node_modules/postcss-merge-longhand/node_modules/postcss/package.json,/node_modules/postcss-ordered-values/node_modules/postcss/package.json,/node_modules/postcss-minify-selectors/node_modules/postcss/package.json,/node_modules/cssnano/node_modules/postcss/package.json,/node_modules/postcss-normalize-positions/node_modules/postcss/package.json,/node_modules/postcss-calc/node_modules/postcss/package.json,/node_modules/postcss-normalize-repeat-style/node_modules/postcss/package.json,/node_modules/css-declaration-sorter/node_modules/postcss/package.json,/node_modules/postcss-normalize-whitespace/node_modules/postcss/package.json,/node_modules/postcss-normalize-charset/node_modules/postcss/package.json,/node_modules/postcss-minify-font-values/node_modules/postcss/package.json,/node_modules/postcss-minify-gradients/node_modules/postcss/package.json,/node_modules/postcss-reduce-initial/node_modules/postcss/package.json,/node_modules/postcss-minify-params/node_modules/postcss/package.json,/node_modules/postcss-normalize-timing-functions/node_modules/postcss/package.json,/node_modules/postcss-normalize-string/node_modules/postcss/package.json,/node_modules/postcss-colormin/node_modules/postcss/package.json,/node_modules/postcss-convert-values/node_modules/postcss/package.json,/node_modules/cssnano-preset-default/node_modules/postcss/package.json,/node_modules/postcss-discard-overridden/node_modules/postcss/package.json,/node_modules/cssnano-util-raw-cache/node_modules/postcss/package.json,/node_modules/postcss-unique-selectors/node_modules/postcss/package.json,/node_modules/postcss-discard-comments/node_modules/postcss/package.json,/node_modules/postcss-merge-rules/node_modules/postcss/package.json,/node_modules/postcss-discard-empty/node_modules/postcss/package.json
Dependency Hierarchy: - laravel-mix-6.0.19.tgz (Root Library) - cssnano-4.1.11.tgz - :x: **postcss-7.0.35.tgz** (Vulnerable Library)
postcss-8.3.0.tgz
Tool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-8.3.0.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/postcss/package.json
Dependency Hierarchy: - :x: **postcss-8.3.0.tgz** (Vulnerable Library)
Found in base branch: 8.x
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://github.com/advisories/GHSA-7fh5-64p2-3v2j
Release Date: 2023-09-29
Fix Resolution: 8.4.31
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