{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "thunderboltRegistry.js",
              "sha256": "eea1ba8ba61d690d808a52ef7fec1a4115e5f322572c5c6241a6dfbcc3223abe",
              "tlsh": "b47153a5b99df02166c33438cb7f5049b4bbc6672c6caee0740899b02f7985c01be6f5"
            }
          ],
          "package_integrity": [
            {
              "filename": "css-nrmgzn-polyfill-1.0.0.tgz",
              "hashes": {
                "sha1": "e672b68052edc0e4b805f50f161b117b0d5b17eb",
                "sha512_sri": "sha512-KhcltUjoZ8S9Hug8iBW4VHTRycfAUbm4sVOT0aZ9zVBmX9EGxYbb0K4ER52nkhKlty5E3E+8VNNNEJNpP+Kjqg=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "css-nrmgzn-polyfill"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-021082",
        "import_time": "2026-10-05T16:22:57.198924026Z",
        "modified_time": "2026-10-05T16:15:10Z",
        "sha256": "4522148c469356aa7799c831ce547d2ae612ac40621e5110ad5d5125bf2f2684",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (4522148c469356aa7799c831ce547d2ae612ac40621e5110ad5d5125bf2f2684)\nThe package presents itself as a CSS polyfill but on require() of thunderboltRegistry.js runs an IIFE that invokes child_process.execSync for id, whoami, uname, ifconfig, and cat /etc/hosts, and sends the command output together with os.hostname(), node version, platform and pid to a hardcoded Burp Collaborator subdomain at https://unl9pgk6ei4uf80n5tf4iktspjvbuzkn9.oastify.com/. The package also exports modules named after internal Wix thunderbolt registries (thunderboltRegistry, siteAssetsRegistry, editorRegistry, corvidRegistry, documentManagementRegistry) and ships a manifest referencing static.parastorage.com paths for css-nrmgzn-polyfill, consistent with a dependency-confusion lure positioned to resolve in place of a private internal module in a Wix build or CI environment. Loading the package yields host reconnaissance exfiltration to an attacker-controlled OAST domain, with no polyfill functionality actually implemented.\n",
  "id": "MAL-2026-17576",
  "modified": "2026-10-05T16:15:10Z",
  "published": "2026-10-05T16:15:10Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/css-nrmgzn-polyfill/v/1.0.0"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in css-nrmgzn-polyfill (npm)"
}