CVE-2026-120561

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.

• CWE-862

• 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/tags/3.3.12/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#L82
• https://plugins.trac.wordpress.org/browser/jetformbuilder/trunk/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/trunk/compatibility/jet-engine/actions/update-options.php#L82
• https://plugins.trac.wordpress.org/changeset/3575346/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/b0fe7d29-118f-42fb-9e48-6217faaa689b?source=cve

Published

Nov 3, 2026

Last Modified

Nov 3, 2026

Status

Deferred

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