SQL injection vulnerability in LiSK CMS

Vulnerability ID: HTB22373
Reference: http://www.htbridge.ch/advisory/sql_injection_vulnerability_in_lisk_cms_1.html
Product: LiSK CMS
Vendor: Createch-group
Vulnerable Version: 4.4
Vendor Notification: 06 May 2010
Vulnerability Type: SQL Injection
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium
Credit: High-Tech Bridge SA (http://www.htbridge.ch/)

Vulnerability Details:
The vulnerability exists due to failure in the "/edit_email.php" script to properly sanitize user-supplied input in "id" 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.

Attacker can use browser to exploit this vulnerability. The following PoC is available:

http://host/path_to_cp/edit_email.php?&id=X%27+union+select+1,2,3,4,5,6+--+