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CVE-2017-14190

Status: ModifiedMedium (6.1)—

A Cross-site Scripting vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.7, 5.2 and earlier, allows attacker to inject arbitrary web script or HTML via maliciously crafted "Host" header in user HTTP requests.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Fortinet — Fortios

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-14190",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2017-14190",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-23T14:00:23.608294Z"
        }
      }
    ],
    "cvssMetricV2": [
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        "type": "Primary",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
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        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
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          "product": "FortiOS",
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  "published": "2018-01-29T16:29:00.230",
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      "tags": [
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      "source": "psirt@fortinet.com"
    },
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      "tags": [
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        "VDB Entry"
      ],
      "source": "psirt@fortinet.com"
    },
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      "url": "https://fortiguard.com/advisory/FG-IR-17-262",
      "tags": [
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        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
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      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Cross-site Scripting vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.7, 5.2 and earlier, allows attacker to inject arbitrary web script or HTML via maliciously crafted \"Host\" header in user HTTP requests."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Cross-Site Scripting (XSS) en Fortinet FortiOS 5.6.0 a 5.6.2; 5.4.0 a 5.4.7 y 5.2 y anteriores permite que un atacante inyecte scripts web o HTML arbitrarios mediante una cabecera \"Host\" maliciosamente manipulada en las peticiones HTTP de usuario."
    }
  ],
  "lastModified": "2026-06-17T01:05:45.017",
  "configurations": [
    {
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          "negate": false,
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          "operator": "OR"
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  "sourceIdentifier": "psirt@fortinet.com"
}