Multiple directory traversal vulnerabilities in cache.php in osCommerce before 2.2 Milestone 2 060817 allow remote attackers to determine existence of arbitrary files and disclose the installation path via a .. (dot dot) in unspecified parameters in the (1) tep_cache_also_purchased, (2) tep_cache_manufacturers_box, and (3) tep_cache_categories_box functions.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28435
http://forums.oscommerce.com/index.php?showtopic=223556&pid=918371