{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:check_mk_project:check_mk:1.4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C3877AA7-4BAF-4C0E-B157-ED2473ACC72A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:check_mk_project:check_mk:1.4.0:p1:*:*:*:*:*:*",
              "matchCriteriaId": "BF31D012-B7D8-4218-8DF0-9497287FC3BE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:check_mk_project:check_mk:1.4.0:p2:*:*:*:*:*:*",
              "matchCriteriaId": "0022EF65-24D5-403E-8824-75BC928FC88F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:check_mk_project:check_mk:1.4.0:p3:*:*:*:*:*:*",
              "matchCriteriaId": "8F375250-FC89-4FEE-BE18-5724136EF89E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:check_mk_project:check_mk:1.4.0:p4:*:*:*:*:*:*",
              "matchCriteriaId": "91C50D90-64F3-45EF-B5D8-DA689D4FC0C0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:check_mk_project:check_mk:1.4.0:p5:*:*:*:*:*:*",
              "matchCriteriaId": "39911FDF-8755-425E-937C-9AA6E4A3BA7E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing an unauthenticated remote attacker to inject arbitrary HTML or JavaScript via the _username parameter when attempting authentication to webapi.py, which is returned unencoded with content type text/html."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de Cross-Site Scripting (XSS) en Check_MK, en versiones 1.4.0x anteriores a la 1.4.0p6, que permite que un atacante remoto no autenticado inyecte HTML o JavaScript arbitrarios mediante el par\u00e1metro _username al intentar autenticarse en webapi.py, que se devuelve sin cifrar con el tipo de contenido texto/html."
    }
  ],
  "id": "CVE-2017-9781",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-06-21T18:29:00.387",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://git.mathias-kettner.de/git/?p=check_mk.git%3Ba=blob%3Bf=.werks/4757%3Bhb=c248f0b6ff7b15ced9f07a3df8a80fad656ea5b1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2017-21"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://git.mathias-kettner.de/git/?p=check_mk.git%3Ba=blob%3Bf=.werks/4757%3Bhb=c248f0b6ff7b15ced9f07a3df8a80fad656ea5b1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2017-21"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}