故障描述退出登录时出现”您当前的访问请求当中含有非法字符，已经被系统拒绝“错误。

解决方案如下：


sourceclassdiscuz的discuz_application.php
查找

[代码]php代码：

 private function _xss_check() {                    static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');                    if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {                            system_error('request_tainting');                    }                    if($_SERVER['REQUEST_METHOD'] == 'GET' ) {                            $temp = $_SERVER['REQUEST_URI'];                    } elseif(empty ($_GET['formhash'])) {                            $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');                    } else {                            $temp = '';                    }                    if(!empty($temp)) {                            $temp = strtoupper(urldecode(urldecode($temp)));                            foreach ($check as $str) {                                    if(strpos($temp, $str) !== false) {                                            system_error('request_tainting');                                    }                            }                    }                    return true;            }

替换为：

[代码]php代码：

    private function _xss_check() {                    $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));                    if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {                            system_error('request_tainting');                    }                    return true;            }