AUGUST 4, 2026
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Case File

CVE-2021-20866

MEDIUM · CVSS 6.5 EPSS 1.66%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-13 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. See the original NVD description below for full technical details.

CVE
CVE-2021-20866
Severity
MEDIUM
CVSS
6.5
EPSS
1.66%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)