CVE-2014-1840
Cross-site scripting (XSS) vulnerability in Upload/search.php in MyBB 1.6.12 and earlier allows remote attackers to inject arbitrary web script or HTML via the keywords parameter in a do_search action, which is not properly handled in a forced SQL error message.
Date published : 2014-03-03
http://osandamalith.wordpress.com/2014/02/02/mybb-1-6-12-post-xss-0day/
http://packetstormsecurity.com/files/125038/MyBB-1.6.12-POST-Cross-Site-Scripting.html