Discuz!x3.1故障描述：垃圾站博主发现升级Discuz! x3.1版本后，退出登录或以游客状态搜索时出现“您当前的访问请求当中含有非法字符，已经被系统拒绝”的错误。
解决方案如下：sourceclassdiscuz的discuz_application.php 查找
1 | private function _xss_check() { |
3 | static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING'); |
5 | if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) { |
6 | system_error('request_tainting'); |
9 | if($_SERVER['REQUEST_METHOD'] == 'GET' ) { |
10 | $temp = $_SERVER['REQUEST_URI']; |
11 | } elseif(empty ($_GET['formhash'])) { |
12 | $temp =$_SERVER['REQUEST_URI'].file_get_contents('php://input'); |
18 | $temp = strtoupper(urldecode(urldecode($temp))); |
19 | foreach ($check as $str) { |
20 | if(strpos($temp, $str) !== false) { |
21 | system_error('request_tainting'); |
替换为：
1 | private function _xss_check() { |
2 | $temp =strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI']))); |
3 | if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) { |
4 | system_error('request_tainting'); |
