CVE-2026-67364: Balbooa.com Balbooa Forms Extension For Joomla

Critical severity, CVSS 10.0. EPSS: 0.5% chance of exploitation in the next 30 days.

Joomla Extension - balbooa.com - Pre-auth PHP Code Injection in Balbooa Forms < 2.4.3.2 - The form's optional custom-PHP post-submission handler is executed via eval(). The [URL parameter = X] shortcode is substituted with the raw, unescaped value of a query parameter, letting an unauthenticated attacker inject arbitrary PHP that executes server-side. The CSRF token needed to reach the endpoint is itself disclosed anonymously via a separate task, so it provides no real protection. Exploitability requires the form to have a custom-PHP handler configured (a documented builder feature) referencing that shortcode, and no reCAPTCHA on the submit button.

Affected products

• Balbooa.com Balbooa Forms Extension For Joomla: version 1.0.0-2.4.3.1 only

Published 2026-08-19. Last modified 2026-09-29.