USN-2217-1: lxml vulnerability

It was discovered that the lxml.html.clean module incorrectly stripped control characters. An attacked could potentially exploit this to conduct cross-site scripting XSS attacks...

CVE-2014-3146

Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote attackers to conduct cross-site scripting XSS attacks via control characters in the link scheme to the cleanhtml function...