Billwerx RC5.2.2 PL2 - 'primary_number' SQL Injection

source: https://www.securityfocus.com/bid/39867/info

Billwerx is prone to an SQL-injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query.

Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database.

Billwerx RC5.2.2 PL2 is vulnerable; other versions may also be affected. 

The following example URI is available:

http://www.example.com/billwerx_rc522_pl2/request_account.php?campaign_id=1&group_id=6&interest_id=6&first_name=indoushka&last_name=indoushka&company_name=indoushka&home_number=indoushka&get_primary=indoushka&work_number=indoushka&mobile_number=indoushka&email_address=indoushka&comments=indoushka&request=REQUEST&close=CLOSE&primary_number=' [(SQL)]