Hi,
On Feb 10, 2011, at 4:12 PM, Bey Youcef wrote:
  Hello all,
 I would like to know whether XWiki is using any HTML filter for purifying
 generated HTML.
 JTidy seems old and not maintained... 
We're currently using HTML Cleaner
http://htmlcleaner.sourceforge.net/
See 
http://svn.xwiki.org/svnroot/xwiki/platform/core/trunk/xwiki-xml/
-Vincent
 Best regards
 YB DEV