CVE-2026-13459: jetmonsters jetformbuilder — dynamic blocks form builder Missing Authorization

Vulnerability summary

CVE-2026-13459 is a medium (CVSS 5.3) Missing Authorization vulnerability in jetmonsters jetformbuilder — dynamic blocks form builder. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.8% of scored vulnerabilities. Fixed in 3.6.3.1.

Timeline

1. 02-07-2026
   PublishedVulnerability first disclosed.
2. 02-07-2026
   Last modifiedVulnerability information updated.

Description

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.6.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to retrieve every distinct value stored under any arbitrary wp_postmeta key on the site — including WooCommerce billing PII such as _billing_email, _billing_phone, and _billing_address fields, order totals, attachment paths, and any third-party plugin credentials or tokens stored in post meta — provided at least one published JetFormBuilder form with a get_from_db generator field exists on the site. Exploitation requires that the target site has at least one published jet-form-builder post containing a field whose generator_function is set to get_from_db; an attacker must supply a matching form ID, field name, and generator ID in the request, but all of these can be discovered by browsing the site's public forms.

• CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.