CVE-2021-20865: Advancedcustomfields Advanced Custom Fields

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

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.

Affected products

• Advancedcustomfields Advanced Custom Fields: before 5.11 (fixed in 5.11)

Published 2021-12-13. Last modified 2026-06-17.