此补丁来自PHPwind官方商业用户补丁,涉及版本 PHPwind7.5 ,主要用于安全修复

1、打开:admin/setforum.php

查找:
$db_uploadfiletype = !empty($db_uploadfiletype) ? (is_array($db_uploadfiletype) ? $db_uploadfiletype : unserialize($db_uploadfiletype)) : array();

修改为:
$db_uploadfiletype = array(
    'gif'  => 2048,    'jpg'  => 2048,
    'jpeg' => 2048,    'bmp'  => 2048,
    'png'  => 2048
   );
------------------------------------------------------------
2、打开:pw_ajax.php

查找:} elseif ($action == 'pcdelimg') {

将此$aciton 中的内容替换如下:
InitGP(array('fieldname','pctype'));
 InitGP(array('tid','id'),GP,2);
 if (!$tid || !$id || !$fieldname || !$pctype) {
  echo 'fail';ajax_footer();
 }
 $id = (int)$id;
 if ($pctype == 'topic') {
  $tablename = GetTopcitable($id);
 } elseif ($pctype == 'postcate') {
  $tablename = GetPcatetable($id);
 }

 $fieldname = $db->get_value("SELECT fieldname FROM pw_pcfield WHERE fieldname=" . pwEscape($fieldname));
 if (!$fieldname || !$tablename) {
  echo 'fail';ajax_footer();
 }
 $path = $db->get_value("SELECT $fieldname FROM $tablename WHERE tid=". pwEscape($tid));

 if (strpos($path,'..') !== false) {
  echo 'fail';ajax_footer();
 }
 $lastpos = strrpos($path,'/') + 1;
 $s_path = substr($path, 0, $lastpos) . 's_' . substr($path, $lastpos);

 if (!file_exists("$attachpath/$path")) {
  if (pwFtpNew($ftp,$db_ifftp)) {
   $ftp->delete($path);
   $ftp->delete($s_path);
   pwFtpClose($ftp);
  }
 } else {
  P_unlink("$attachdir/$path");
  if (file_exists("$attachdir/$s_path")) {
   P_unlink("$attachdir/$s_path");
  }
 }

 $db->update("UPDATE $tablename SET $fieldname='' WHERE tid=". pwEscape($tid));

 echo 'success';

 ajax_footer();
------------------------------------------------------------
3、打开:api/class_Other.php

查找:foreach ($classdb as $key => $class) {

在下面添加:
$class['cid'] = intval($class['cid']);