CVE-2003-1559: Microsoft Ie

Medium severity, CVSS 5.0. EPSS: 15.8% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 5.22, and other 5 through 6 SP1 versions, sends Referer headers containing https:// URLs in requests for http:// URLs, which allows remote attackers to obtain potentially sensitive information by reading Referer log data.

Affected products

• Microsoft Ie: version 5.22 only
• Microsoft Internet Explorer: version 5.5 only; version 6 only

Published 2003-12-31. Last modified 2026-06-16.