HTML Purifier 4.2.0 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by tests/PHPT/Reporter/SimpleTest.php and certain other files.Referenceshttp://code.google.com/p/inspathx/source/browse/trunk/paths_vuln/htmlpurifier-4.2.0http://www.openwall.com/lists/oss-security/2011/06/27/6http://code.google.com/p/inspathx/source/browse/trunk/paths_vuln/%21_README