Security advisory

{
  "id": "e22c31d24b1d6f89ecc7923df07c79925a49c02417833bdcffce401da029225c",
  "url": "https://osv.dev/vulnerability/CVE-2021-43721",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-43721",
    "summary": "Leanote 2.7.0 is vulnerable to Cross Site Scripting (XSS) in the markdown type note. This leads to remote code execution with payload :",
    "evidence": "osv:CVE-2021-43721",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-43721",
      "aliases": [
        "CVE-2021-43721"
      ],
      "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/leanote/desktop-app",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c34c847586fbb566eb8ea4e87f2e7acd5c088221"
                },
                {
                  "last_affected": "c34c847586fbb566eb8ea4e87f2e7acd5c088221"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:leanote:leanote:2.7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.7.0"
                      },
                      {
                        "last_affected": "2.7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.7.0",
            "v2.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43721.json"
          }
        }
      ],
      "modified": "2026-10-24T02:47:31.903283377Z",
      "provider": "osv",
      "references": [
        "https://github.com/leanote/desktop-app/issues/364"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-43721",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 428170,
  "published_at": "2022-03-28T14:15:07.627+00:00"
}