source: http://www.securityfocus.com/bid/20990/info

Omnistar Article Manager is prone to multiple SQL-injection vulnerabilities because the application fails to properly sanitize user-supplied input before using it in an SQL query. 

A successful exploit could allow an attacker to compromise the application, access or modify data, or exploit vulnerabilities in the underlying database implementation.

http://www.example.com/articles/comments.php?article_id='[sql]
http://www.example.com/articles/article.php?op=save&article_id='[sql]
http://www.example.com/articles/pages.php?page_id='[sql]