Multiple PHP remote file inclusion vulnerabilities in Kaqoo Auction Software Free Edition allow remote attackers to execute arbitrary PHP code via a URL in the install_root parameter to (1) support.inc.php, (2) function.inc.php, (3) rdal_object.inc.php, (4) rdal_editor.inc.php. (5) login.inc.php, (6) request.inc.php, and (7) categories.inc.php in include/core/; (8) save.inc.php, (9) preview.inc.php, (10) edit_item.inc.php, (11) new_item.inc.php, and (12) item_info.inc.php in include/display/item/; (13) search.inc.php, (14) item_edit.inc.php, (15) register_succsess.inc.php, (16) context_menu.inc.php, (17) item_repost.inc.php, (18) balance.inc.php, (19) featured.inc.php, (20) user.inc.php, (21) buynow.inc.php, (22) install_complete.inc.php, (23) fees_info.inc.php, (24) user_feedback.inc.php, (25) admin_balance.inc.php, (26) activate.inc.php, (27) user_info.inc.php, (28) member.inc.php, (29) add_bid.inc.php, (30) items_filter.inc.php, (31) my_info.inc.php, (32) register.inc.php, (33) leave_feedback.inc.php, and (34) user_auctions.inc.php in include/display/; and (35) design/form.inc.php, (36) processor.inc.php, (37) interfaces.inc.php (38) left_menu.inc.php, (39) login.inc.php, and (40) categories.inc.php in include/.