Security advisory

{
  "id": "3bd00498f5113779f7573230030dfbc58de4c66f303a2d52161040a21a1da1c4",
  "url": "https://osv.dev/vulnerability/CVE-2021-42227",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-42227",
    "summary": "Cross SIte Scripting (XSS) vulnerability exists in KindEditor 4.1.x via a Google search inurl:/examples/uploadbutton.html and then the .html file on the website that uses this editor (the file suffix is allowed).",
    "evidence": "osv:CVE-2021-42227",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-42227",
      "aliases": [
        "CVE-2021-42227",
        "GHSA-wv83-jrfh-rp33"
      ],
      "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/kindsoft/kindeditor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b73063957cddc6bcf186e3fcd5a0c6ec4cdbb2d0"
                },
                {
                  "last_affected": "6e2d34e740e76c597cc56f99706d5dc706ed6e6a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:kindsoft:kindeditor:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.1"
                      },
                      {
                        "last_affected": "4.1.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.1.12",
            "v4.1.11",
            "v4.1.10",
            "v4.1.9",
            "v4.1.6",
            "v4.1.5",
            "v4.1.4",
            "v4.1.3",
            "v4.1.2",
            "v4.1.1",
            "v4.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-42227.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:03.573251622Z",
      "provider": "osv",
      "references": [
        "https://github.com/kindsoft/kindeditor/issues/336"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-42227",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384832,
  "published_at": "2021-10-14T17:15:08.787+00:00"
}