Smoothwall Express Reflected Cross-Site Scripting Vulnerability in iptools.cgi

Vulnerability

A reflected cross-site scripting vulnerability has been identified in Smoothwall Express version 3.1-SP4-polar-x86_64-update9. This vulnerability allows unauthenticated attackers to inject malicious scripts by manipulating the IP parameter. Exploitation involves sending POST requests to the iptools.cgi endpoint with script payloads in the IP parameter, which are then executed as arbitrary JavaScript in the browsers of victims.

Impact

Exploitation of this vulnerability allows for reflected cross-site scripting, where injected scripts are executed in the context of the user's browser.

Reproduction

To reproduce this vulnerability, send a POST request to the 'iptools.cgi' endpoint. Include a script payload in the 'IP' parameter. The injected script will be executed in the browser of the user accessing the Smoothwall interface.

Added: Feb 16, 2026, 6:24 PM
Updated: Feb 16, 2026, 6:24 PM

Vulnerability Rating

Custom Algorithm
spread
2.6
impact
1.7
exploitability
7.6
remediation
0.0
relevance
3.1
threat
6.4
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.