source: https://www.securityfocus.com/bid/16130/info
Jax Calendar is prone to an SQL injection vulnerability. This issue is 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.
Version 1.34 and prior are affected; other versions may also be vulnerable.
http://www.example.com/jax_calendar.php?Y=2005&m=11&d=15&cal_id=[SQL]