CVE-2025-30360 (Medium) detected in webpack-dev-server-3.11.1.tgz

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

CVE-2025-30360 - Medium Severity Vulnerability

Vulnerable Library - webpack-dev-server-3.11.1.tgz

Serves a webpack app. Updates the browser on changes.

Library home page: https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-3.11.1.tgz

Path to dependency file: /dmreactplugin/package.json

Path to vulnerable library: /dmreactplugin/package.json

Dependency Hierarchy:

• react-scripts-4.0.3.tgz (Root Library)
  • :x: webpack-dev-server-3.11.1.tgz (Vulnerable Library)

Found in HEAD commit: 41f949b863ead7c74b72a01845dbe0d88c24a364

Found in base branch: main

Vulnerability Details

webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users' source code may be stolen when you access a malicious web site with non-Chromium based browser. The "Origin" header is checked to prevent Cross-site WebSocket hijacking from happening, which was reported by CVE-2018-14732. But webpack-dev-server always allows IP address "Origin" headers. This allows websites that are served on IP addresses to connect WebSocket. An attacker can obtain source code via a method similar to that used to exploit CVE-2018-14732. Version 5.2.1 contains a patch for the issue.

Publish Date: 2025-06-03

URL: CVE-2025-30360

CVSS 3 Score Details (6.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-9jgg-88mc-972h

Release Date: 2025-06-03

Fix Resolution: https://github.com/webpack/webpack-dev-server.git - v5.2.1

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