Smoothwall Express 3.1 'proxy.cgi' Cross-Site Scripting

Vulnerability Description

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple cross-site scripting vulnerabilities in the proxy.cgi endpoint that allow attackers to inject malicious scripts through parameters including CACHE_SIZE, MAX_SIZE, MIN_SIZE, MAX_OUTGOING_SIZE, and MAX_INCOMING_SIZE. Attackers can submit POST requests with script payloads to store or reflect arbitrary JavaScript code that executes in users' browsers when the proxy configuration page is accessed.

References

• https://www.exploit-db.com/exploits/46333
• http://www.smoothwall.org
• https://www.vulncheck.com/advisories/smoothwall-express-proxycgi-cross-site-scripting