Vulnerability · Published Nov 3, 2026 · Assigned by Wordfence
CVE-2026-120561JetFormBuilder <= 3.6.2 - Missing Authorization to Unauthenticated JetEngine Options Page Modification
Medium 5.3
In plain English
A medium-severity missing authorization in JetFormBuilder — Dynamic Blocks Form Builder from jetmonsters. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official description
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'do_action' function in the 'Update_Options' action class in all versions up to, and including, 3.6.2. This makes it possible for unauthenticated attackers to modify JetEngine Options Page values when an administrator has configured a form with the "Update Options" post-submission action. The vulnerability requires that both JetFormBuilder and JetEngine are installed and active, and that an administrator has specifically configured a form with the Update Options action.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| jetmonsters | JetFormBuilder — Dynamic Blocks Form Builder | 0 – through 3.6.2 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b0fe7d29-118f-42fb-9e48-6217faaa689b?source=cve
- https://plugins.trac.wordpress.org/browser/jetformbuilder/trunk/compatibility/jet-engine/actions/update-options.php#L50
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.3.12/compatibility/jet-engine/actions/update-options.php#L50
- https://plugins.trac.wordpress.org/browser/jetformbuilder/trunk/compatibility/jet-engine/actions/update-options.php#L75
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.3.12/compatibility/jet-engine/actions/update-options.php#L75
- https://plugins.trac.wordpress.org/browser/jetformbuilder/trunk/compatibility/jet-engine/actions/update-options.php#L82
- https://plugins.trac.wordpress.org/browser/jetformbuilder/tags/3.3.12/compatibility/jet-engine/actions/update-options.php#L82
- https://plugins.trac.wordpress.org/changeset/3575346/