SQL injection vulnerability in admin/htaccess/bpsunlock.php in the BulletProof Security plugin before .51.1 for WordPress allows remote authenticated users to execute arbitrary SQL commands via the tableprefix parameter.
https://wordpress.org/plugins/bulletproof-security/changelog/
http://www.securityfocus.com/bid/70918
http://www.securityfocus.com/archive/1/533904/100/0/threaded