The default configuration of the <Button2> binding in Uzbl before 2010.08.05 does not properly use the @SELECTED_URI feature, which allows user-assisted remote attackers to execute arbitrary commands via a crafted HREF attribute of an A element in an HTML document.
https://exchange.xforce.ibmcloud.com/vulnerabilities/61011
https://bugzilla.redhat.com/show_bug.cgi?id=621965
https://bugzilla.redhat.com/show_bug.cgi?id=621964
http://www.uzbl.org/news.php?id=29
http://www.uzbl.org/bugs/index.php?do=details&task_id=240
http://www.securityfocus.com/bid/42297
http://marc.info/?l=oss-security&m=128111994317381&w=2
http://marc.info/?l=oss-security&m=128111493509265&w=2
http://github.com/pawelz/uzbl/commit/342f292c27973c9df5f631a38bd12f14a9c5cdc2
http://github.com/Dieterbe/uzbl/commit/9cc39cb5c9396be013b5dc2ba7e4b3eaa647e975