Vulnerability-Lookup

CVE-2021-20865 (GCVE-0-2021-20865)

Vulnerability from cvelistv5 – Published: 2021-12-13 06:40 – Updated: 2024-08-03 17:53

Summary

Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

Missing authorization

Assigner

jpcert jpcert root

References

3 references

URL	Tags
https://www.advancedcustomfields.com/	x_refsource_MISC
https://wordpress.org/plugins/advanced-custom-fields/	x_refsource_MISC
https://jvn.jp/en/jp/JVN09136401/index.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
Delicious Brains	Advanced Custom Fields and Advanced Custom Fields Pro	Affected: versions prior to 5.11	guessed

Show details on NVD website

JSON

To clipboard

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CNVD-2022-05516

Vulnerability from cnvd - Published: 2022-01-20

Title

Delicious Brains Advanced Custom Fields访问控制错误漏洞

Description

Delicious Brains Advanced Custom Fields是加拿大Delicious Brains公司的一个高级自定义字段插件。 Delicious Brains Advanced Custom Fields存在访问控制错误漏洞，该漏洞源于缺少与数据库浏览相关的授权，攻击者可利用该漏洞浏览数据库上未经授权的数据。

Severity

中

Patch Name

Delicious Brains Advanced Custom Fields访问控制错误漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.cybersecurity-help.cz/vdb/SB2021120202

Reference

https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000109.html

Impacted products

Name
['Delicious Brains Advanced Custom Fields <5.11', 'Delicious Brains Advanced Custom Fields Pro <5.11']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20865",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20865"
    }
  },
  "description": "Delicious Brains Advanced Custom Fields\u662f\u52a0\u62ff\u5927Delicious Brains\u516c\u53f8\u7684\u4e00\u4e2a\u9ad8\u7ea7\u81ea\u5b9a\u4e49\u5b57\u6bb5\u63d2\u4ef6\u3002\n\nDelicious Brains Advanced Custom Fields\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5c11\u4e0e\u6570\u636e\u5e93\u6d4f\u89c8\u76f8\u5173\u7684\u6388\u6743\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6d4f\u89c8\u6570\u636e\u5e93\u4e0a\u672a\u7ecf\u6388\u6743\u7684\u6570\u636e\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-05516",
  "openTime": "2022-01-20",
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  "serverity": "\u4e2d",
  "submitTime": "2021-12-04",
  "title": "Delicious Brains Advanced Custom Fields\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

FKIE_CVE-2021-20865

Vulnerability from fkie_nvd - Published: 2021-12-13 07:15 - Updated: 2026-06-17 03:34

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

URL	Tags
vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN09136401/index.html	Third Party Advisory
vultures@jpcert.or.jp	https://wordpress.org/plugins/advanced-custom-fields/	Third Party Advisory
vultures@jpcert.or.jp	https://www.advancedcustomfields.com/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN09136401/index.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://wordpress.org/plugins/advanced-custom-fields/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.advancedcustomfields.com/	Vendor Advisory

Impacted products

	Vendor	Product	Version
	advancedcustomfields	advanced_custom_fields	*
	advancedcustomfields	advanced_custom_fields	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
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          "product": "Advanced Custom Fields and Advanced Custom Fields Pro",
          "vendor": "Delicious Brains",
          "versions": [
            {
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            }
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              "matchCriteriaId": "6C52B683-87AA-4662-B773-352FA827ED54",
              "versionEndExcluding": "5.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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 browsing database which may allow a user to browse unauthorized data via unspecified vectors."
    },
    {
      "lang": "es",
      "value": "Advanced Custom Fields versiones anteriores a 5.11 y Advanced Custom Fields Pro versiones anteriores a 5.11, contienen una vulnerabilidad de falta de autorizaci\u00f3n en la navegaci\u00f3n de la base de datos que puede permitir a un usuario navegar por datos no autorizados por medio de vectores no especificados"
    }
  ],
  "id": "CVE-2021-20865",
  "lastModified": "2026-06-17T03:34:34.020",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-12-13T07:15:06.793",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "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": [
        "Vendor Advisory"
      ],
      "url": "https://www.advancedcustomfields.com/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN09136401/index.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://wordpress.org/plugins/advanced-custom-fields/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.advancedcustomfields.com/"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-F2FC-P952-6XF6

Vulnerability from github – Published: 2021-12-14 00:01 – Updated: 2021-12-16 00:02

Details

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-20865"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-13T07:15:00Z",
    "severity": "HIGH"
  },
  "details": "Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.",
  "id": "GHSA-f2fc-p952-6xf6",
  "modified": "2021-12-16T00:02:57Z",
  "published": "2021-12-14T00:01:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20865"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN09136401/index.html"
    },
    {
      "type": "WEB",
      "url": "https://wordpress.org/plugins/advanced-custom-fields"
    },
    {
      "type": "WEB",
      "url": "https://www.advancedcustomfields.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2021-20865

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-20865

Aliases

CVE-2021-20865

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-20865",
    "description": "Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.",
    "id": "GSD-2021-20865"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20865"
      ],
      "details": "Advanced Custom Fields versions prior to 5.11 and Advanced Custom Fields Pro versions prior to 5.11 contain a missing authorization vulnerability in browsing database which may allow a user to browse unauthorized data via unspecified vectors.",
      "id": "GSD-2021-20865",
      "modified": "2023-12-13T01:23:12.037479Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vultures@jpcert.or.jp",
        "ID": "CVE-2021-20865",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Advanced Custom Fields and Advanced Custom Fields Pro",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "versions prior to 5.11"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Delicious Brains"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
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            "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 browsing database which may allow a user to browse unauthorized data via unspecified vectors."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Missing authorization"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.advancedcustomfields.com/",
            "refsource": "MISC",
            "url": "https://www.advancedcustomfields.com/"
          },
          {
            "name": "https://wordpress.org/plugins/advanced-custom-fields/",
            "refsource": "MISC",
            "url": "https://wordpress.org/plugins/advanced-custom-fields/"
          },
          {
            "name": "https://jvn.jp/en/jp/JVN09136401/index.html",
            "refsource": "MISC",
            "url": "https://jvn.jp/en/jp/JVN09136401/index.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:*:wordpress:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.11",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:pro:wordpress:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.11",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20865"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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 browsing database which may allow a user to browse unauthorized data via unspecified vectors."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-862"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://wordpress.org/plugins/advanced-custom-fields/",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://wordpress.org/plugins/advanced-custom-fields/"
            },
            {
              "name": "https://jvn.jp/en/jp/JVN09136401/index.html",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://jvn.jp/en/jp/JVN09136401/index.html"
            },
            {
              "name": "https://www.advancedcustomfields.com/",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.advancedcustomfields.com/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-12-15T18:01Z",
      "publishedDate": "2021-12-13T07:15Z"
    }
  }
}

JVNDB-2021-000109

Vulnerability from jvndb - Published: 2021-12-02 06:02 - Updated:2022-02-18 07:18

Severity

4.3 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

Multiple missing authorization vulnerabilities in WordPress Plugin "Advanced Custom Fields"

Details

WordPress Plugin "Advanced Custom Fields" provided by Delicious Brains contains multiple missing authorization vulnerabilities listed below. * Missing authorization related to database browsing (CWE-862) - CVE-2021-20865 * Missing authorization related to user list obtaining (CWE-862) - CVE-2021-20866 * Missing authorization related to field group movement (CWE-862) - CVE-2021-20867 Keitaro Yamazaki of Ierae Security, Inc reported these vulnerabilities to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	http://jvn.jp/en/jp/JVN09136401/index.html
	CVE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20865
	CVE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20866
	CVE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20867
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20865
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20866
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20867
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Delicious Brains

Advanced Custom Fields

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000109.html",
  "dc:date": "2022-02-18T16:18+09:00",
  "dcterms:issued": "2021-12-02T15:02+09:00",
  "dcterms:modified": "2022-02-18T16:18+09:00",
  "description": "WordPress Plugin \"Advanced Custom Fields\" provided by Delicious Brains contains multiple missing authorization vulnerabilities listed below.\r\n\r\n* Missing authorization related to database browsing (CWE-862) - CVE-2021-20865\r\n* Missing authorization related to user list obtaining (CWE-862) - CVE-2021-20866\r\n* Missing authorization related to field group movement (CWE-862) - CVE-2021-20867\r\n\r\nKeitaro Yamazaki of Ierae Security, Inc reported these vulnerabilities to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000109.html",
  "sec:cpe": {
    "#text": "cpe:/a:advancedcustomfields:advanced_custom_fields",
    "@product": "Advanced Custom Fields",
    "@vendor": "Delicious Brains",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "4.0",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
      "@version": "2.0"
    },
    {
      "@score": "4.3",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2021-000109",
  "sec:references": [
    {
      "#text": "http://jvn.jp/en/jp/JVN09136401/index.html",
      "@id": "JVN#09136401",
      "@source": "JVN"
    },
    {
      "#text": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20865",
      "@id": "CVE-2021-20865",
      "@source": "CVE"
    },
    {
      "#text": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20866",
      "@id": "CVE-2021-20866",
      "@source": "CVE"
    },
    {
      "#text": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20867",
      "@id": "CVE-2021-20867",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20865",
      "@id": "CVE-2021-20865",
      "@source": "NVD"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20866",
      "@id": "CVE-2021-20866",
      "@source": "NVD"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20867",
      "@id": "CVE-2021-20867",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Multiple missing authorization vulnerabilities in WordPress Plugin \"Advanced Custom Fields\""
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2021-20865 (GCVE-0-2021-20865)

CNVD-2022-05516

FKIE_CVE-2021-20865

GHSA-F2FC-P952-6XF6

GSD-2021-20865

JVNDB-2021-000109

Tags

Sightings

Nomenclature

Related by attack behaviour