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CVE-2017-6927

Estado: ModificadaMedia (6.1)—
Gravedad6.1Media · CVSS 3.0
Probabilidad de explotación1.61 %mayor que el 76 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Las versiones 8.4.x de Drupal anteriores a la 8.4.5 y las versiones 7.x anteriores a la 7.57 tienen una función de JavaScript Drupal.checkPlain() que se emplea para escapar texto potencialmente peligroso antes de extraerlo como HTML (ya que la exportación JavaScript no suele pasar un proceso de autoescape Twig). Esta función no gestiona adecuadamente todos los métodos de inyección de HTML malicioso, lo que conduce a una vulnerabilidad de Cross-Site Scripting (XSS) en ciertas circunstancias. Las funciones de PHP que Drupal proporciona para escapar HTML no se han visto afectadas.

CVSS

Puntuación base
6.1
Versión
3.0
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
1.61 %
Percentil entre todas las CVEs puntuadas
76
Fecha de la puntuación
20/10/2026

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 (2)

Debian — Debian LinuxDrupal — Drupal

CWE

Referencias

Mostrar las 8 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2017-6927",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6.1,
          "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",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "mlhess@drupal.org",
      "affectedData": [
        {
          "vendor": "Drupal.org",
          "product": "Drupal Core",
          "versions": [
            {
              "status": "affected",
              "version": "8.4.x versions before 8.4.5 and Drupal 7.x versions before 7.57"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-03-01T23:29:00.297",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/103138",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4123",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://www.drupal.org/sa-core-2018-001",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/103138",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4123",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.drupal.org/sa-core-2018-001",
      "tags": [
        "Vendor Advisory"
      ],
      "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": "Drupal 8.4.x versions before 8.4.5 and Drupal 7.x versions before 7.57 has a Drupal.checkPlain() JavaScript function which is used to escape potentially dangerous text before outputting it to HTML (as JavaScript output does not typically go through Twig autoescaping). This function does not correctly handle all methods of injecting malicious HTML, leading to a cross-site scripting vulnerability under certain circumstances. The PHP functions which Drupal provides for HTML escaping are not affected."
    },
    {
      "lang": "es",
      "value": "Las versiones 8.4.x de Drupal anteriores a la 8.4.5 y las versiones 7.x anteriores a la 7.57 tienen una función de JavaScript Drupal.checkPlain() que se emplea para escapar texto potencialmente peligroso antes de extraerlo como HTML (ya que la exportación JavaScript no suele pasar un proceso de autoescape Twig). Esta función no gestiona adecuadamente todos los métodos de inyección de HTML malicioso, lo que conduce a una vulnerabilidad de Cross-Site Scripting (XSS) en ciertas circunstancias. Las funciones de PHP que Drupal proporciona para escapar HTML no se han visto afectadas."
    }
  ],
  "lastModified": "2026-06-17T01:23:21.000",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EAF33815-3D31-4DC0-90EB-2649F94EA368",
              "versionEndExcluding": "7.57",
              "versionStartIncluding": "7.0"
            },
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5C4AF907-5109-48BA-B510-8BC32A82C632",
              "versionEndExcluding": "8.4.5",
              "versionStartIncluding": "8.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "mlhess@drupal.org"
}