CVE-2019-25379: Smoothwall Express

High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days.

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains stored and reflected cross-site scripting vulnerabilities in the urlfilter.cgi endpoint that allow attackers to inject malicious scripts. Attackers can submit POST requests with script payloads in the REDIRECT_PAGE or CHILDREN parameters to execute arbitrary JavaScript in user browsers.

Affected products

• Smoothwall Smoothwall Express: version 3.1 only

Published 2026-02-16. Last modified 2026-06-17.