What is CVE-2026-12428?

CVE-2026-12428 is a medium-severity vulnerability in Gamaup Blocks For Acf Fields — Display Custom In The Block Editor, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-07-09.

How severe is CVE-2026-12428?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Gamaup Blocks For Acf Fields — Display Custom In The Block Editor

CVE-2026-12428

The Blocks for ACF Fields plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the get_all_values() function in the /wp-json/acf-field-blocks/v1/values REST endpoint in versions up to, and…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Gamaup Blocks For Acf Fields — Display Custom In The Block Editor — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-12428?: CVE-2026-12428 is a medium-severity vulnerability in Gamaup Blocks For Acf Fields — Display Custom In The Block Editor, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-07-09.
How severe is CVE-2026-12428?: Medium severity. CVSS v3 base score is 6.5 out of 10.