CVE-1999-0488: Microsoft Internet Explorer

High severity, CVSS 7.5. EPSS: 11.8% chance of exploitation in the next 30 days.

Internet Explorer 4.0 and 5.0 allows a remote attacker to execute security scripts in a different security context using malicious URLs, a variant of the "cross frame" vulnerability.

Affected products

• Microsoft Internet Explorer: version 4.0 only; version 4.0.1 only; version 5.0 only

Published 1999-04-21. Last modified 2026-06-16.