Docebo 3.5.0.3 and earlier allows remote attackers to obtain sensitive information via a direct request to (1) class/class.conf_fw.php, (2) class.module/class.event_manager.php, (3) lib/lib.domxml5.php, or (4) menu/menu_over.php in doceboCore/; or (5) class/class.conf_cms.php, (6) lib/lib.compose.php, (7) modules/chat/teleskill.php, or (8) class/class.admin_menu_cms.php in doceboCms/; which reveals the installation path in an error message.