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CVE-2018-1000842

Estado: ModificadaMedia (6.1)—

FatFreeCRM, en versiones anteriores a la 0.14.1, desde la versión 0.15.0 hasta la 0.15.1, desde la 0.16.0 hasta la 0.16.3, desde la 0.17.0 hasta la 0.17.2, y en versiones 0.18.0, contiene una vulnerabilidad Cross Site Scripting (XSS) en el commit con ID 6d60bc8ed010c4eda05d6645c64849f415f68d65 que puede resultar en la ejecución de JavaScript. El ataque parece ser explotable en los navegadores del usuario final cuando visiten la página, desencadenando la ejecución de una carga útil con contenido con JavaScript. La vulnerabilidad parece haber sido solucionada en las versiones 0.18.1, 0.17.3, 0.16.4, 0.15.2 y 0.14.2.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Fatfreecrm — Fatfreecrm

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-1000842",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-12-20T15:29:01.953",
  "references": [
    {
      "url": "https://github.com/asteinhauser/fat_free_crm/commit/306f940b26ccf3f406665f07bece1229a7a5dcfa",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/asteinhauser/fat_free_crm/issues/1",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/fatfreecrm/fat_free_crm/wiki/XSS-Vulnerability-%282018-10-27%29",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://groups.google.com/forum/#%21topic/fat-free-crm-users/TxsdZXSe7Jc",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/asteinhauser/fat_free_crm/commit/306f940b26ccf3f406665f07bece1229a7a5dcfa",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/asteinhauser/fat_free_crm/issues/1",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/fatfreecrm/fat_free_crm/wiki/XSS-Vulnerability-%282018-10-27%29",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://groups.google.com/forum/#%21topic/fat-free-crm-users/TxsdZXSe7Jc",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "FatFreeCRM version <=0.14.1, >=0.15.0 <=0.15.1, >=0.16.0 <=0.16.3, >=0.17.0 <=0.17.2, ==0.18.0 contains a Cross Site Scripting (XSS) vulnerability in commit 6d60bc8ed010c4eda05d6645c64849f415f68d65 that can result in Javascript execution. This attack appear to be exploitable via Content with Javascript payload will be executed on end user browsers when they visit the page. This vulnerability appears to have been fixed in 0.18.1, 0.17.3, 0.16.4, 0.15.2, 0.14.2."
    },
    {
      "lang": "es",
      "value": "FatFreeCRM, en versiones anteriores a la 0.14.1, desde la versión 0.15.0 hasta la 0.15.1, desde la 0.16.0 hasta la 0.16.3, desde la 0.17.0 hasta la 0.17.2, y en versiones 0.18.0, contiene una vulnerabilidad Cross Site Scripting (XSS) en el commit con ID 6d60bc8ed010c4eda05d6645c64849f415f68d65 que puede resultar en la ejecución de JavaScript. El ataque parece ser explotable en los navegadores del usuario final cuando visiten la página, desencadenando la ejecución de una carga útil con contenido con JavaScript. La vulnerabilidad parece haber sido solucionada en las versiones 0.18.1, 0.17.3, 0.16.4, 0.15.2 y 0.14.2."
    }
  ],
  "lastModified": "2026-06-17T01:33:09.623",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fatfreecrm:fatfreecrm:*:*:*:*:*:ruby:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16554B44-BB93-4020-814A-A6D72052733B",
              "versionEndIncluding": "0.14.1"
            },
            {
              "criteria": "cpe:2.3:a:fatfreecrm:fatfreecrm:*:*:*:*:*:ruby:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5CE3E475-AB71-4B62-B9EF-DF6C153443B2",
              "versionEndIncluding": "0.15.1",
              "versionStartIncluding": "0.15.0"
            },
            {
              "criteria": "cpe:2.3:a:fatfreecrm:fatfreecrm:*:*:*:*:*:ruby:*:*",
              "vulnerable": true,
              "matchCriteriaId": "15C0B298-D903-4A4A-9532-3DDE0E881D72",
              "versionEndIncluding": "0.16.3",
              "versionStartIncluding": "0.16.0"
            },
            {
              "criteria": "cpe:2.3:a:fatfreecrm:fatfreecrm:*:*:*:*:*:ruby:*:*",
              "vulnerable": true,
              "matchCriteriaId": "06E6410E-AE97-490C-9960-616D12BCF66E",
              "versionEndIncluding": "0.17.2",
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              "matchCriteriaId": "EE4EECAE-FB06-4FC2-B171-C1FBE53BD2C4"
            }
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}