CVE-2025-30360

Description

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.

Reserved 2025-03-21 | Published 2025-06-03 | Updated 2025-06-03 | Assigner GitHub_M

Problem types

CWE-346: Origin Validation Error

Product status

< 5.2.1
affected

References

github.com/...server/security/advisories/GHSA-9jgg-88mc-972h

github.com/...ommit/5c9378bb01276357d7af208a0856ca2163db188e

github.com/...ommit/72efaab83381a0e1c4914adf401cbd210b7de7eb

github.com/...0ba4e30dbde2d98785ecf4c80b32f711/lib/Server.js

cve.org (CVE-2025-30360)

nvd.nist.gov (CVE-2025-30360)

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