# CVE-2003-1328

## Summary

- **CVE ID:** CVE-2003-1328
- **Severity:** UNKNOWN
- **CVSS Score:** 1.74
- **CWE:** N/A
- **Published:** Sep 1, 2004
- **Last Modified:** Mar 16, 2026

## Description

The showHelp() function in Microsoft Internet Explorer 5.01, 5.5, and 6.0 supports certain types of pluggable protocols that allow remote attackers to bypass the cross-domain security model and execute arbitrary code, aka "Improper Cross Domain Security Validation with ShowHelp functionality."

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A57)
- [CNA](http://www.ciac.org/ciac/bulletins/n-038.shtml)
- [CNA](http://www.securityfocus.com/bid/6780)
- [CNA](http://www.kb.cert.org/vuls/id/400577)
- [CNA](http://archives.neohapsis.com/archives/bugtraq/2003-02/0083.html)
- [CNA](http://www.iss.net/security_center/static/11259.php)
- [CNA](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-004)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 43.56%
- **EPSS Percentile:** 97.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._