Description
An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:8080/ connection from any origin.
Remediation
References
https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages
https://github.com/webpack/webpack-dev-server/commit/f18e5adf123221a1015be63e1ca2491ca45b8d10
https://github.com/webpack/webpack-dev-server/issues/1445
Related Vulnerabilities
CVE-2022-22912 Vulnerability in npm package plist
CVE-2023-24163 Vulnerability in maven package cn.hutool:hutool-all
CVE-2022-38180 Vulnerability in maven package io.ktor:ktor-client-core
CVE-2018-18628 Vulnerability in maven package ro.pippo:pippo-core
CVE-2022-41930 Vulnerability in maven package org.xwiki.platform:xwiki-platform-user-profile-ui