CVE-2025-30360

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  "id": "CVE-2025-30360",
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          "id": "CVE-2025-30360",
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              "exploitation": "poc"
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            {
              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-06-03T17:57:51.255979Z"
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          "baseScore": 6.5,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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              "version": "< 5.2.1"
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  "published": "2025-06-03T18:15:25.410",
  "references": [
    {
      "url": "https://github.com/webpack/webpack-dev-server/blob/55220a800ba4e30dbde2d98785ecf4c80b32f711/lib/Server.js#L3113-L3127",
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      "url": "https://github.com/webpack/webpack-dev-server/commit/5c9378bb01276357d7af208a0856ca2163db188e",
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      "url": "https://github.com/webpack/webpack-dev-server/commit/72efaab83381a0e1c4914adf401cbd210b7de7eb",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
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    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "webpack-dev-server permite a los usuarios usar webpack con un servidor de desarrollo que proporciona recarga en tiempo real. Antes de la versión 5.2.1, el código fuente de los usuarios de webpack-dev-server podía ser robado al acceder a un sitio web malicioso con un navegador que no fuera Chromium. El encabezado \"Origin\" se verifica para evitar el secuestro de WebSockets entre sitios, reportado por CVE-2018-14732. Sin embargo, webpack-dev-server siempre permite los encabezados \"Origin\" de direcciones IP. Esto permite que los sitios web que se sirven en direcciones IP se conecten a WebSockets. Un atacante puede obtener el código fuente mediante un método similar al utilizado para explotar CVE-2018-14732. La versión 5.2.1 incluye un parche para este problema."
    }
  ],
  "lastModified": "2026-06-17T09:08:34.903",
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