    public static function desc($vars){
        if(!empty($vars)){
            $desc = substr(strip_tags(htmlspecialchars_decode($vars).". ".self::$desc),0,150);
        }else{
            $desc = substr(self::$desc,0,150);
        }
        $desc = Hooks::filter('site_desc_filter', $desc);
        return $desc;
    }

The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.