CVE-2003-1326: Microsoft Ie

High severity, CVSS 7.5. EPSS: 16.3% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 5.5 and 6.0 allows remote attackers to bypass the cross-domain security model to run malicious script or arbitrary programs via dialog boxes, aka "Improper Cross Domain Security Validation with dialog box."

Affected products

• Microsoft Ie: version 6.0 only
• Microsoft Internet Explorer: version 5.0.1 only; version 5.5 only; version 6.0 only

Published 2003-02-19. Last modified 2026-06-16.