The eval_js function in uzbl-core.c in Uzbl before 2010.01.05 exposes the run method of the Uzbl object, which allows remote attackers to execute arbitrary commands via JavaScript code.
https://exchange.xforce.ibmcloud.com/vulnerabilities/56612
http://www.uzbl.org/news.php?id=22
http://www.openwall.com/lists/oss-security/2010/01/06/3
http://www.openwall.com/lists/oss-security/2010/01/06/1
http://lists.uzbl.org/pipermail/uzbl-dev-uzbl.org/2010-January/000586.html
http://github.com/Dieterbe/uzbl/downloads
http://github.com/Dieterbe/uzbl/commit/1958b52d41cba96956dc1995660de49525ed1047