JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.4.1 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2026-28140
CVSS 5.3 (Medium)
Publicly Published August 4, 2026
Last Updated August 13, 2026
Researcher Ananda Dhakal

Description

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.6.4.1. This makes it possible for unauthenticated attackers to perform an unauthorized action.

References

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Vulnerability Details for JetFormBuilder — Dynamic Blocks Form Builder

Software Type Plugin
Software Slug jetformbuilder (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.6.4.2, or a newer patched version
Affected Version
  • <= 3.6.4.1
Patched Version
  • 3.6.4.2

Recent vulnerabilities in JetFormBuilder — Dynamic Blocks Form Builder

# Title CVE ID CVSS Researchers Date
1 JetFormBuilder <= 3.6.5.4 - Unauthenticated Stored Cross-Site Scripting via 'choice' Post Meta via Insert/Update Post Action CVE-2026-97342 7.2 UKO October 1, 2026
2 JetFormBuilder <= 3.6.5.3 - Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field CVE-2026-92212 6.1 Tarcísio Luchesi De Almeida Silva (Poystick) September 24, 2026
3 JetFormBuilder <= 3.6.5.2 - Authenticated (Administrator+) Arbitrary File Deletion CVE-2026-19860 6.5 Sai Praneeth Koti September 17, 2026
4 JetFormBuilder <= 3.6.2 - Unauthenticated Privilege Escalation via '_jet_engine_booking_form_id' Parameter CVE-2026-12793 9.8 daroo September 15, 2026
5 JetFormBuilder — Dynamic Blocks Form Builder <= 3.6.5.1 - Unauthenticated Stored Cross-Site Scripting CVE-2026-84817 7.2 Anthony Green of Greenhat Security September 7, 2026
6 JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Information Exposure CVE-2026-19858 5.3 Jakub Herman September 7, 2026
7 JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Arbitrary Shortcode Execution CVE-2026-19859 9.8 Jakub Herman September 3, 2026
8 JetFormBuilder <= 3.6.2 - Missing Authorization to Unauthenticated JetEngine Options Page Modification 5.3 andrea bocchetti September 3, 2026
9 JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Stored Cross-Site Scripting CVE-2026-19861 7.2 Sai Praneeth Koti September 3, 2026
10 JetFormBuilder — Dynamic Blocks Form Builder < 3.6.5.2 - Unauthenticated Email Header Injection CVE-2026-19862 5.3 Emirhan Kurt September 3, 2026

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