FKIE_CVE-2019-16151

Vulnerability from fkie_nvd - Published: 2025-03-21 16:15 - Updated: 2026-06-17 02:21
Severity
4.7 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted "Host" header or to execute JavaScript code in the victim's browser context. This happens when the FortiGate has web filtering and category override enabled/configured.
References
psirt@fortinet.comhttps://fortiguard.com/advisory/FG-IR-19-301Vendor Advisory
Impacted products
Vendor Product Version
fortinet fortios *
fortinet fortios *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:o:fortinet:fortios:6.4.1:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.9:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.8:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.7:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.6:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.5:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.4:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.3:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.2:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.1:*:*:*:*:*:*:*",
            "cpe:2.3:o:fortinet:fortios:6.2.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiOS",
          "vendor": "Fortinet",
          "versions": [
            {
              "lessThanOrEqual": "6.4.1",
              "status": "affected",
              "version": "6.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.9",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "psirt@fortinet.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8EE47BA6-6F1B-40E9-8FE5-5752389875DF",
              "versionEndExcluding": "6.2.10",
              "versionStartIncluding": "6.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FECE2DC5-CFCC-4BA9-B416-4EB2C1E4D9BB",
              "versionEndExcluding": "6.4.2",
              "versionStartIncluding": "6.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted \"Host\" header or to execute JavaScript code in the victim\u0027s browser context.\r\nThis happens when the FortiGate has web filtering and category override enabled/configured."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de neutralizaci\u00f3n incorrecta de la entrada durante la generaci\u00f3n de p\u00e1ginas web [CWE-79] en FortiOS 6.4.1 y anteriores, 6.2.9 y anteriores podr\u00eda permitir que un atacante remoto no autenticado redirija a los usuarios a sitios web maliciosos mediante un encabezado \"Host\" manipulado o ejecute c\u00f3digo JavaScript en el navegador de la v\u00edctima. Esto ocurre cuando FortiGate tiene habilitados o configurados el filtrado web y la anulaci\u00f3n de categor\u00edas."
    }
  ],
  "id": "CVE-2019-16151",
  "lastModified": "2026-06-17T02:21:46.470",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "psirt@fortinet.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2019-16151",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-21T16:21:55.938349Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-03-21T16:15:13.210",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.com/advisory/FG-IR-19-301"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "psirt@fortinet.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.