CVE-2004-2480
Squid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and access...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2004-2480- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2004-2480- Updated
- 2026-11-02
EUVDEUVD-2004-2471 No score
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.
- Record
EUVD-2004-2471- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3pq4-c488-v2m4 No score
Squid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and access...
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.
- Record
GHSA-3pq4-c488-v2m4- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2004-2480- Updated
- 2026-11-02
OSVDEBIAN-CVE-2004-2480 No score
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.
- Record
DEBIAN-CVE-2004-2480- Updated
- 2026-11-02
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | National Science Foundation Squid Proxy 2.3 - Internet Access Control Bypass | 2004-05-10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2004-2480 is a medium vulnerability (CVSS 5.0) in National Science Foundation Squid Web Proxy Cache, published December 31, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.03%, the 87th percentile. Fixed in squid 2.5.