MyBB sid Sql Injection Vulnerability

Summary
This host is installed with MyBB and is prone to SQL injection vulnerability.
Impact
Successful exploitation will let attackers to manipulate SQL queries by injecting arbitrary SQL code and gain sensitive information. Impact Level: Application
Solution
Upgrade to version 1.6.13 or later, For updates refer to http://mybb.com
Insight
Flaw is due to improper validation of user-supplied input passed to 'sid' parameter in 'search.php' page.
Affected
MyBB 1.6.12, previous versions may also be affected.
Detection
Send a crafted exploit string via HTTP GET request and check whether it is possible to execute sql query.