Multiple directory traversal vulnerabilities in the Default theme in Exero CMS 1.0.1 allow remote attackers to include and execute arbitrary local files via directory traversal sequences in the theme parameter to (1) index.php, (2) editpassword.php, and (3) avatar.php in usercp/; (4) custompage.php; (5) errors/404.php; (6) memberslist.php and (7) profile.php in members/; (8) index.php and (9) fullview.php in news/; and (10) nopermission.php.