Unrestricted Upload of File in PuMuKIT application

{
  "id": "4fca2e1cd95938b554ff8b0d84e62285af8098671e86d4b52504fb9414263bbb",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-4337",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Unrestricted Upload of File in PuMuKIT application",
    "summary": "Unrestricted Upload of File with Dangerous Type vulnerability in the PuMuKIT application allows a unauthenticated user to upload any type of file to the server, and to any path where the web server user has write permissions. This could also allow them to delete files.",
    "evidence": "cve:CVE-2026-4337",
    "products": [
      {
        "name": {
          "value": "PuMuKIT",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-4337",
      "aliases": [
        "CVE-2026-4337"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "Safety": "NOT_DEFINED",
            "version": "4.0",
            "Recovery": "NOT_DEFINED",
            "baseScore": 8.8,
            "Automatable": "NOT_DEFINED",
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L",
            "exploitMaturity": "NOT_DEFINED",
            "providerUrgency": "NOT_DEFINED",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "NONE",
            "subIntegrityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "LOW",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "PuMuKIT",
          "product": "PuMuKIT",
          "versions": [
            {
              "status": "affected",
              "version": "current version"
            }
          ],
          "defaultStatus": "affected"
        }
      ],
      "modified": "2026-10-27T11:03:15.829Z",
      "provider": "cve",
      "references": [
        "https://www.incibe.es/en/incibe-cert/notices/aviso/unrestricted-upload-file-pumukit-application"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516",
          "shortName": "INCIBE",
          "dateUpdated": "2026-10-27T11:03:15.829Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-4337",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 391938,
  "published_at": "2026-10-27T11:03:15.829+00:00"
}