{
  "id": "CVE-2021-20866",
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "published": "2021-12-13T07:15:06.937",
  "lastModified": "2021-12-15T18:14:27.383",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in obtaining the user list which may allow a user to obtain the unauthorized information via unspecified vectors."
    },
    {
      "lang": "es",
      "value": "Advanced Custom Fields versiones anteriores a 5.11 y Advanced Custom Fields Pro anteriores a 5.11, contienen una vulnerabilidad de falta de autorizaci\u00f3n en la obtenci\u00f3n de la lista de usuarios que puede permitir a un usuario obtener la informaci\u00f3n no autorizada por medio de vectores no especificados"
    }
  ],
  "metrics": {
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:*:wordpress:*:*",
              "versionEndExcluding": "5.11",
              "matchCriteriaId": "D719028D-5C3A-4803-8ACF-967589D3DCDD"
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  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN09136401/index.html",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://wordpress.org/plugins/advanced-custom-fields/",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.advancedcustomfields.com/",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}