CVE

CVE-2026-26352

Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authenticated attackers can inject arbitrary JavaScript through VPN configuration settings that executes when the affected page is viewed by other users.

Severity

MEDIUM

CVSS

5.1

Published

Mar 30, 2026

Modified

Jun 17, 2026