Security advisory

{
  "id": "961f5831f6708acf84eb286828ea7d503fbcccd2a7defe195ff118e12ac0ca68",
  "url": "https://osv.dev/vulnerability/CVE-2020-28481",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-28481",
    "summary": "The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.",
    "evidence": "osv:CVE-2020-28481",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-28481",
      "aliases": [
        "CVE-2020-28481",
        "GHSA-fxwf-4rqh-v8g3"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/socketio/socket.io",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "873fdc55eddd672960fdbc1325ccb7c4bf466f05"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:socket:socket.io:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.3.0",
            "2.2.0",
            "2.1.1",
            "2.1.0",
            "2.0.4",
            "2.0.3",
            "2.0.2",
            "2.0.1",
            "2.0.0",
            "1.7.2",
            "1.7.1",
            "1.7.0",
            "1.6.0",
            "1.5.1",
            "1.5.0",
            "1.4.5",
            "1.4.4",
            "1.4.3",
            "1.4.2",
            "1.4.1",
            "1.4.0",
            "1.3.2",
            "1.3.1",
            "1.3.0",
            "1.2.1",
            "1.2.0",
            "1.1.0",
            "1.0.6",
            "1.0.5",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1",
            "1.0.0",
            "1.0.0-pre5",
            "1.0.0-pre4",
            "1.0.0-pre3",
            "1.0.0-pre2",
            "1.0.0-pre",
            "0.9.10",
            "0.9.9",
            "0.9.8",
            "0.9.7",
            "0.9.5",
            "0.9.4",
            "0.9.3",
            "0.9.2",
            "0.9.1-1",
            "0.9.1",
            "0.9.0",
            "0.8.7",
            "0.8.6",
            "0.8.5",
            "0.8.4",
            "0.8.3",
            "0.8.2",
            "0.8.1",
            "0.8.0",
            "0.7.9",
            "0.7.8",
            "0.7.7",
            "0.7.6",
            "0.7.5",
            "0.7.4",
            "0.7.3",
            "0.7.2",
            "0.7.1",
            "0.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28481.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:19.446474158Z",
      "provider": "osv",
      "references": [
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357",
        "https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859",
        "https://github.com/socketio/socket.io/issues/3671"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-28481",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385039,
  "published_at": "2021-01-19T15:15:12.06+00:00"
}