{
  "id": "CVE-2018-19953",
  "url": "https://spydr.io/cve/CVE-2018-19953",
  "published": "2020-10-28T18:15:12.740Z",
  "modified": "2026-10-01T20:17:17.020Z",
  "score": 6.1,
  "severity": "medium",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "score_source": "NVD",
  "epss": 0.28982,
  "epss_percentile": 0.98118,
  "exploited": true,
  "kev": {
    "added": "2022-05-24",
    "due": "2022-06-14",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Known",
    "name": "QNAP NAS File Station Cross-Site Scripting Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-19953"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "QNAP Systems Inc."
  ],
  "products": [
    "QNAP Systems Inc. QTS"
  ],
  "cwes": [
    "CWE-79",
    "CWE-80"
  ],
  "description": "If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 6.1,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19953",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19953",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}