Privilege escalation in Jetmonsters Jetformbuilder — Dynamic Blocks Form Builder

CVE-2026-12793

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.6.2. This is due to the plugin not validating that a submitted form ID belongs to a JetFormBuilder form before parsing the referenced post's content as form schema and executing an Advanced Validation server-side callback. This makes it possible for unauthenticated attackers to create a new administrator-level user account.

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-12793?
CVE-2026-12793 is a critical-severity vulnerability in Jetmonsters Jetformbuilder — Dynamic Blocks Form Builder, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-09-16.
How severe is CVE-2026-12793?
Critical severity. CVSS v3 base score is 9.8 out of 10.