Multiple directory traversal vulnerabilities in Dokeos 1.8.5, and possibly earlier, allow remote attackers to (1) read portions of arbitrary files via a .. (dot dot) and a ..\ (dot dot backslash) in the lang parameter to main/exercice/hotspot_lang_conversion.php and (2) read arbitrary files via a .. (dot dot) in the doc_url parameter to main/exercice/Hpdownload.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.