CVE-2004-2480: National Science Foundation Squid Web Proxy Cache

Medium severity, CVSS 5.0. EPSS: 3% chance of exploitation in the next 30 days.

Squid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and access arbitrary websites via "@@" sequences in a URL within Internet Explorer.

Affected products

• National Science Foundation Squid Web Proxy Cache: version 2.3_stable5 only

Published 2004-12-31. Last modified 2026-06-16.