CVE-2021-20866

MEDIUM

Advanced Custom Fields <5.11 - Info Disclosure

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://www.advancedcustomfields.com/
Third Party Advisory x_refsource_misc
https://wordpress.org/plugins/advanced-custom-fields/
Third Party Advisory x_refsource_misc
https://jvn.jp/en/jp/JVN09136401/index.html

Scores

CVSS v3 6.5
EPSS 0.0166
EPSS Percentile 73.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-862
Status published
Products (1)
advancedcustomfields/advanced_custom_fields < 5.11 (2 CPE variants)
Published Dec 13, 2021
Tracked Since Feb 18, 2026