## CVE-2021-23368 - Medium Severity Vulnerability

Vulnerable Libraries - postcss-7.0.32.tgz, postcss-7.0.35.tgz

postcss-7.0.32.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.32.tgz

Path to dependency file: react-accordion-ts/demo/package.json

Path to vulnerable library: react-accordion-ts/demo/node_modules/purgecss/node_modules/postcss/package.json

Dependency Hierarchy: - parcel-1.12.4.tgz (Root Library) - htmlnano-0.2.9.tgz - purgecss-2.3.0.tgz - :x: **postcss-7.0.32.tgz** (Vulnerable Library)

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: react-accordion-ts/demo/package.json

Path to vulnerable library: react-accordion-ts/demo/node_modules/postcss/package.json

Dependency Hierarchy: - parcel-1.12.4.tgz (Root Library) - :x: **postcss-7.0.35.tgz** (Vulnerable Library)

Found in HEAD commit: 82c5f7dbe89dbcbb0207be770a6edcd8e22ebd0a

Found in base branch: master

Vulnerability Details

The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.

Publish Date: 2021-04-12

URL: CVE-2021-23368

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: None - Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23368

Release Date: 2021-04-12

Fix Resolution: postcss -8.2.10

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CVE-2021-23368 (Medium) detected in postcss-7.0.32.tgz, postcss-7.0.35.tgz #426

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