Multiple directory traversal vulnerabilities in PhpMyChat Plus 1.9 and earlier allow remote attackers to read arbitrary files via a .. (dot dot) in the ChatPath parameter to (1) avatar.php (2) colorhelp_popup.php (3) color_popup.php (4) index.php (5) index1.php (6) lib/connected_users.lib.php (7) lib/index.lib.php and (8) phpMyChat.php3; and the (9) L parameter to logs.php. NOTE: CVE analysis suggests that vector 1 might be incorrect.