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CVE-2016-6635

Estado: ModificadaAlta (8.8)—

Vulnerabilidad de CSRF en la función wp_ajax_wp_compression_test en wp-admin/includes/ajax-actions.php en WordPress en versiones anteriores a 4.5 permite a atacantes remotos secuestrar la autenticación de administradores para peticiones que cambian la opción de compresión de la escritura.

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)

Wordpress — Wordpress

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-6635",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
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          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
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  ],
  "published": "2016-08-07T16:59:17.113",
  "references": [
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      "url": "http://codex.wordpress.org/Version_4.5",
      "tags": [
        "Release Notes"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3681",
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    },
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      "url": "https://github.com/WordPress/WordPress/commit/9b7a7754133c50b82bd9d976fb5b24094f658aab",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
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      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://codex.wordpress.org/Version_4.5",
      "tags": [
        "Release Notes"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3681",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://github.com/WordPress/WordPress/commit/9b7a7754133c50b82bd9d976fb5b24094f658aab",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wpvulndb.com/vulnerabilities/8475",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-site request forgery (CSRF) vulnerability in the wp_ajax_wp_compression_test function in wp-admin/includes/ajax-actions.php in WordPress before 4.5 allows remote attackers to hijack the authentication of administrators for requests that change the script compression option."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de CSRF en la función wp_ajax_wp_compression_test en wp-admin/includes/ajax-actions.php en WordPress en versiones anteriores a 4.5 permite a atacantes remotos secuestrar la autenticación de administradores para peticiones que cambian la opción de compresión de la escritura."
    }
  ],
  "lastModified": "2026-06-17T00:51:30.620",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3DECF2AF-5224-4952-8DC4-2F6E2E8F66FA",
              "versionEndIncluding": "4.4.2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}