Security advisory

{
  "id": "99a04ef7c38ad6a4518a4dcec4184bf219405f3258b42a7153e644a7e77d7461",
  "url": "https://osv.dev/vulnerability/CVE-2021-41921",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41921",
    "summary": "novel-plus V3.6.1 allows unrestricted file uploads. Unrestricted file suffixes and contents can lead to server attacks and arbitrary code execution.",
    "evidence": "osv:CVE-2021-41921",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-41921",
      "aliases": [
        "CVE-2021-41921"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/201206030/novel-plus",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6fc2df9b5a4052e360f086e0cbef47da9dc5e6ab"
                },
                {
                  "last_affected": "6fc2df9b5a4052e360f086e0cbef47da9dc5e6ab"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:xxyopen:novel-plus:3.6.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.6.1"
                      },
                      {
                        "last_affected": "3.6.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.6.1",
            "v3.6.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41921.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:04.357060163Z",
      "provider": "osv",
      "references": [
        "https://github.com/201206030/novel-plus/issues/62"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-41921",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384840,
  "published_at": "2022-04-28T13:15:08.347+00:00"
}