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.
https://bugs.kde.org/show_bug.cgi?id=217464
http://www.vupen.com/english/advisories/2010/2689
http://secunia.com/advisories/40646
http://marc.info/?l=oss-security&m=127973502617945&w=2
http://marc.info/?l=oss-security&m=127971194610788&w=2
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/049406.html