WordPress security changelog
MEDIUM CVE-2026-13459 Deferred

JetFormBuilder — Dynamic Blocks Form Builder: A security weakness

JetFormBuilder — Dynamic Blocks Form Builder is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 3.6.3.

CVE / CNA score 5.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
JetFormBuilder — Dynamic Blocks Form Builder
Plugin slug
jetformbuilder
Affected
<= 3.6.3
Safe version
3.6.3.1
Published
Jul 02, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Jul 02, 2026 and is one of 25 known issues for this plugin.

What to do

Update, patch or deactivate.

The official author release notes confirm remediation by 3.6.3.1; this does not establish that every intervening release was affected. Update the affected edition to 3.6.3.1 or a later maintained release on its supported branch. Official author release notes: https://wordpress.org/plugins/jetformbuilder/.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Primary and upstream sources