CVE-2021-20866

CVSS V2 Medium 4 CVSS V3 Medium 6.5
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 obtaining the user list which may allow a user to obtain the unauthorized information via unspecified vectors.
Overview
  • CVE ID
  • CVE-2021-20866
  • Assigner
  • vultures@jpcert.or.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-12-13T07:15:06
  • Last Modified Date
  • 2021-12-15T18:14:27
Weakness Enumerations
CWE URL
CWE-862 http://cwe.mitre.org/data/definitions/862.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:*:wordpress:*:* 1 OR 5.11
cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:pro:wordpress:*:* 1 OR 5.11
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://wordpress.org/plugins/advanced-custom-fields/ Third Party Advisory
https://jvn.jp/en/jp/JVN09136401/index.html Third Party Advisory
https://www.advancedcustomfields.com/ Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20866
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20866
History
Created Old Value New Value Data Type Notes
2022-05-10 06:41:09 Added to TrackCVE
2022-12-06 03:35:10 2021-12-13T07:15Z 2021-12-13T07:15:06 CVE Published Date updated
2022-12-06 03:35:10 2021-12-15T18:14:27 CVE Modified Date updated
2022-12-06 03:35:10 Analyzed Vulnerability Status updated