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CVE-2020-8297

Estado: ModificadaMedia (4.3)—

Nextcloud Deck before 1.0.2 suffers from an insecure direct object reference (IDOR) vulnerability that permits users with a duplicate user identifier to access deck data of a previous deleted user.

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)

Nextcloud — Deck

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-8297",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Nextcloud Deck",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in 1.0.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-23T19:15:13.387",
  "references": [
    {
      "url": "https://github.com/nextcloud/deck/pull/1976",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://hackerone.com/reports/882258",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-007",
      "tags": [
        "Broken Link"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/nextcloud/deck/pull/1976",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://hackerone.com/reports/882258",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-007",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud Deck before 1.0.2 suffers from an insecure direct object reference (IDOR) vulnerability that permits users with a duplicate user identifier to access deck data of a previous deleted user."
    },
    {
      "lang": "es",
      "value": "Nextcloud Deck anterior a 1.0.2 sufre de una vulnerabilidad de Referencia Directa a Objeto No Segura (IDOR) que permite a los usuarios con un identificador de usuario duplicado acceder a los datos de la plataforma de un usuario eliminado anteriormente"
    }
  ],
  "lastModified": "2026-06-17T03:26:14.653",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nextcloud:deck:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "783DE574-9738-4A79-868A-3BF7D69B4216",
              "versionEndExcluding": "1.0.2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "support@hackerone.com"
}