Severity: Important Vendor: The Apache Software Foundation Versions Affected: Apache Wicket 1.4.x Apache Wicket 1.3.x and 1.5-RCx are not affected Description: With multi window support application configuration and special query parameters it is possible to execute any kind of JavaScript on a site running with the affected versions. Mitigation: Either disable multi window support with org.apache.wicket.settings.IPageSettings.setAutomaticMultiWindowSupport(false) or upgrade to Apache Wicket 1.4.18 or 1.5-RC5.1. Credit: This issue was discovered by Sven Krewitt of TÜV Rheinland i-sec GmbH. Apache Wicket Team