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CVE-2015-5730

Estado: ModificadaMedia (5)—

La función sanitize_widget_instance en wp-includes/class-wp-customize-widgets.php en WordPress en versiones anteriores a 4.2.4 no usa una comparación a tiempo constante para los widgets, lo que permite a atacantes remotos llevar a cabo un ataque de sincronización de canal lateral midiendo el retraso antes de que sea calculada la desigualdad.

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-2015-5730",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-11-09T11:59:01.993",
  "references": [
    {
      "url": "http://openwall.com/lists/oss-security/2015/08/04/7",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3332",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/76160",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1033178",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://codex.wordpress.org/Version_4.2.4",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://core.trac.wordpress.org/changeset/33535",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://core.trac.wordpress.org/changeset/33536",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://wordpress.org/news/2015/08/wordpress-4-2-4-security-and-maintenance-release/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://wpvulndb.com/vulnerabilities/8130",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2015/08/04/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3332",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/76160",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1033178",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://codex.wordpress.org/Version_4.2.4",
      "tags": [
        "Patch",
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://core.trac.wordpress.org/changeset/33535",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://core.trac.wordpress.org/changeset/33536",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wordpress.org/news/2015/08/wordpress-4-2-4-security-and-maintenance-release/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wpvulndb.com/vulnerabilities/8130",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The sanitize_widget_instance function in wp-includes/class-wp-customize-widgets.php in WordPress before 4.2.4 does not use a constant-time comparison for widgets, which allows remote attackers to conduct a timing side-channel attack by measuring the delay before inequality is calculated."
    },
    {
      "lang": "es",
      "value": "La función sanitize_widget_instance en wp-includes/class-wp-customize-widgets.php en WordPress en versiones anteriores a 4.2.4 no usa una comparación a tiempo constante para los widgets, lo que permite a atacantes remotos llevar a cabo un ataque de sincronización de canal lateral midiendo el retraso antes de que sea calculada la desigualdad."
    }
  ],
  "lastModified": "2026-06-17T00:29:40.147",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "74E4DDE0-15BF-45A1-92A3-38EEAB8CF5D9",
              "versionEndIncluding": "4.2.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}