CVE-2009-1088: Hannonhill Cascade

High severity, CVSS 9.0. EPSS: 12% chance of exploitation in the next 30 days.

Hannon Hill Cascade Server 5.7 and other versions allows remote authenticated users to execute arbitrary programs or Java code via a crafted XSLT stylesheet with "extension elements and extension functions" that trigger code execution by Xalan-Java, as demonstrated using xalan://java.lang.Runtime.

Affected products

• Hannonhill Cascade: version 5.7 only

Published 2009-03-25. Last modified 2026-06-16.