Multiple PHP remote file inclusion vulnerabilities in TalkBack 2.2.7 allow remote attackers to execute arbitrary PHP code via a URL in the (1) language_file parameter to (a) comments-display-tpl.php and (b) addons/separate-comments-mod/my-comments-display-tpl.php and the (2) config[comments_form_tpl] parameter to comments-display-tpl.php.