Security advisory

{
  "id": "aea984306fabf233308e8fd18f7298c21b91881244ba26dbfd54cc224af8af43",
  "url": "https://osv.dev/vulnerability/CVE-2020-8823",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8823",
    "summary": "htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.",
    "evidence": "osv:CVE-2020-8823",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-8823",
      "aliases": [
        "CVE-2020-8823",
        "GHSA-hh8v-jmh3-9437",
        "SNYK-JS-SOCKJS-548397"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sockjs/sockjs-client",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "698fb5a742b14f377925860981ecfb271ae13903"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:sockjs_project:sockjs:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.2.1",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0",
            "v0.0.2",
            "v0.0.1",
            "v0.0.0-dirty",
            "v0.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8823.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:17.905843676Z",
      "provider": "osv",
      "references": [
        "https://github.com/theyiyibest/Reflected-XSS-on-SockJS/issues/1",
        "https://snyk.io/vuln/SNYK-JS-SOCKJS-548397",
        "https://www.sockjs.org",
        "https://github.com/theyiyibest/Reflected-XSS-on-SockJS"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-8823",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429663,
  "published_at": "2020-02-10T03:15:10.677+00:00"
}