The ajaxReg module for vBulletin is prone to an SQL-injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query.
A successful exploit may allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database.
An attacker can exploit the issue using a browser.
The following example data is available.
http://downloads.securityfocus.com/vulnerabilities/exploits/56877.php.txt