The remote web server contains a script that is vulnerable to a SQL injection attack.
The remote host is running PHPList. PHPList is an application that gathers and handles mailing and customer lists. This version is reported to be prone to multiple vulnerabilities that may include: Cross-Site scripting (XSS), SQL Injection, HTML Injection, and possibly others. An attacker exploiting these flaws would be able to run commands with the privileges of the Web Server.
Upgrade to version 2.6.5 or higher.