CVE-2007-4439: Lighthouse Development Squirrelcart

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

PHP remote file inclusion vulnerability in popup_window.php in Squirrelcart 1.x.x and earlier allows remote attackers to execute arbitrary PHP code via a URL in the site_isp_root parameter, probably related to cart.php.

Affected products

• Lighthouse Development Squirrelcart: up to and including 1.6.3

Published 2007-08-21. Last modified 2026-06-16.