source: https://www.securityfocus.com/bid/16228/info

TankLogger is prone to multiple SQL injection vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input before using it in an SQL query.

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. 

http://www.example.com/exp/tanklogger/showInfo.php? livestock_id=99'% 20union%20select% 201,2,3,4,5, 6,7,8,9/*