diff --git a/extend/base/Uploader.php b/extend/base/Uploader.php
index 5ecf0f788a83a5efb531249da2b7dfcedc97e369..0c9a4d9421bd5c71c98354a846a6342a355e674a 100755
--- a/extend/base/Uploader.php
+++ b/extend/base/Uploader.php
@@ -107,6 +107,12 @@ class Uploader
      */
     private function uploadFile()
     {
+        if(empty($_FILES[$this->fileField]))
+        {
+            $this->stateInfo = $this->getStateInfo("ERROR_SIZE_EXCEED");
+            return;
+        }
+        
         $file = $this->file = $_FILES[$this->fileField];
         if (!$file) {
             $this->stateInfo = $this->getStateInfo("ERROR_FILE_NOT_FOUND");
diff --git a/public/static/common/lib/ueditor/dialogs/attachment/attachment.js b/public/static/common/lib/ueditor/dialogs/attachment/attachment.js
index 966d5ad7397d1d890d04294eb30e44f64b47d4a8..7f8c3e951163bc0ecf77cf21a6250fca2c943977 100755
--- a/public/static/common/lib/ueditor/dialogs/attachment/attachment.js
+++ b/public/static/common/lib/ueditor/dialogs/attachment/attachment.js
@@ -176,7 +176,8 @@
                 fileVal: editor.getOpt('fileFieldName'),
                 duplicate: true,
                 fileSingleSizeLimit: fileMaxSize,
-                compress: false
+                compress: false,
+                threads: 1
             });
             uploader.addButton({
                 id: '#filePickerBlock'
diff --git a/public/static/common/lib/ueditor/dialogs/image/image.js b/public/static/common/lib/ueditor/dialogs/image/image.js
index ee67cbfbe5afa55bf38d79e20c79d3de69c7c3c4..3af42fd4cb0107d0c0c7adfb09ff8c9d1b134fa2 100755
--- a/public/static/common/lib/ueditor/dialogs/image/image.js
+++ b/public/static/common/lib/ueditor/dialogs/image/image.js
@@ -348,6 +348,7 @@
                 server: actionUrl,
                 fileVal: editor.getOpt('imageFieldName'),
                 duplicate: true,
+                threads: 1,
                 fileSingleSizeLimit: imageMaxSize,    // 默认 2 M
                 compress: editor.getOpt('imageCompressEnable') ? {
                     width: imageCompressBorder,
diff --git a/public/static/common/lib/ueditor/dialogs/video/video.js b/public/static/common/lib/ueditor/dialogs/video/video.js
index a96a2f0b35cc98a536a6fc6e3605abd14ce4a2a2..030fc54e23077623f436c4812106ef087eab770f 100755
--- a/public/static/common/lib/ueditor/dialogs/video/video.js
+++ b/public/static/common/lib/ueditor/dialogs/video/video.js
@@ -625,7 +625,8 @@
                 fileVal: editor.getOpt('videoFieldName'),
                 duplicate: true,
                 fileSingleSizeLimit: fileMaxSize,
-                compress: false
+                compress: false,
+                threads: 1
             });
             uploader.addButton({
                 id: '#filePickerBlock'