Multiple cross-site scripting (XSS) vulnerabilities in rekonq 0.5 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) a URL associated with a nonexistent domain name, related to webpage.cpp, aka a "universal XSS" issue; (2) unspecified vectors related to webview.cpp; and the about: views for (3) favorites, (4) bookmarks, (5) closed tabs, and (6) history.