Multiple cross-site scripting (XSS) vulnerabilities in Open-Xchange AppSuite and Server before 6.20.7 rev16, 6.22.0 before rev15, 6.22.1 before rev17, 7.0.1 before rev6, and 7.0.2 before rev7 allow remote attackers to inject arbitrary web script or HTML via (1) a javascript: URL, (2) malformed nested SCRIPT elements, (3) a mail signature, or (4) JavaScript code within an image file.