webpack-dev-server users' source code may be stolen when they access a malicious web site with non-Chromium based browser

Summary Source code may be stolen when you access a malicious web site with non-Chromium based browser. Details 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 header...

CVE-2025-30360

An information exposure flaw has been discovered in webpack-dev-server. When accessing third party web sites with a non-Chromium based browser, a cross origin request may be allowed. This issue can result in the source code being stolen for users that use a predictable port and a non-Chromium bas...

CVE-2025-30360 webpack-dev-server users' source code may be stolen when they access a malicious web site with non-Chromium based browser

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-si...

webpack-dev-server 访问控制错误漏洞

webpack-dev-server is a webpack open source application that provides webpack. An access control error vulnerability exists in webpack-dev-server versions prior to 5.2.1, which stems from the possibility of source code theft when visiting a malicious website using a non-Chromium-based browser...