Smoothwall Express: Unvalidated Input in Web Interface

Summary

An attacker can inject malicious scripts into the web interface of Smoothwall Express, potentially allowing them to control users' browsers. This can happen when an attacker sends specially crafted requests to the portfw.cgi script. To protect your system, update to the latest version of Smoothwall Express or apply any available patches.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
smoothwall	smoothwall_express	3.1	–

Original title

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the portfw.cgi script that allow attackers to inject malicious scripts through un...

Original description

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the portfw.cgi script that allow attackers to inject malicious scripts through unvalidated parameters. Attackers can submit POST requests with script payloads in the EXT, SRC_PORT_SEL, SRC_PORT, DEST_IP, DEST_PORT_SEL, or COMMENT parameters to execute arbitrary JavaScript in users' browsers.

nvd CVSS3.1 6.1

nvd CVSS4.0 5.1

Vulnerability type

CWE-79 Cross-site Scripting (XSS)

http://www.smoothwall.org Product
https://www.exploit-db.com/exploits/46333 Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/smoothwall-express-portfwcgi-cross-site-scr... Broken Link