Multiple directory traversal vulnerabilities in Pligg 9.9 and earlier allow remote attackers to (1) determine the existence of arbitrary files via a .. (dot dot) in the $tb_url variable in trackback.php, or (2) include arbitrary files via a .. (dot dot) in the template parameter to settemplate.php.
Improper Limitation of a Pathname to a Restricted Directory The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.