diff --git a/CHANGES.md b/CHANGES.md
index 16739a73212..e2b457bc267 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -10,6 +10,7 @@ Fixed Issues:
 * [#13129](http://dev.ckeditor.com/ticket/13129) Fixed: Block widget blurred after drop followed by undo.
 * [#13468](http://dev.ckeditor.com/ticket/13468): [IE] Fixed: Binding drag&drop `dataTransfer` does not work if `text` data was set in the meantime.
 * [#13419](http://dev.ckeditor.com/ticket/13419): Fixed: [Auto Link](http://ckeditor.com/addon/autolink) plugin does not encode double quotes in URLs.
+* [#13460](http://dev.ckeditor.com/ticket/13460): [IE8] Fixed: Copying inline widgets is broken when the Advanced Content Filter is disabled.
 
 ## CKEditor 4.5.1
 
diff --git a/plugins/widget/plugin.js b/plugins/widget/plugin.js
index fb6ffd636ac..a27baa94869 100644
--- a/plugins/widget/plugin.js
+++ b/plugins/widget/plugin.js
@@ -2334,7 +2334,9 @@
 				'<span [^>]*data-cke-copybin-start="1"[^>]*>.?</span>([\\s\\S]+)<span [^>]*data-cke-copybin-end="1"[^>]*>.?</span>' +
 			'(?:</(?:div|span)>)?' +
 		'(?:</(?:div|span)>)?' +
-		'$'
+		'$',
+		// IE8 prefers uppercase when browsers stick to lowercase HTML (#13460).
+		'i'
 	);
 
 	function pasteReplaceFn( match, wrapperHtml ) {
diff --git a/tests/plugins/widget/widgetsintegration.js b/tests/plugins/widget/widgetsintegration.js
index 5aaa204ce1f..752a131b2d0 100644
--- a/tests/plugins/widget/widgetsintegration.js
+++ b/tests/plugins/widget/widgetsintegration.js
@@ -1,4 +1,4 @@
-/* bender-tags: widgetcore */
+/* bender-tags: widgetcore, 13460 */
 /* bender-include: _helpers/tools.js */
 /* global widgetTestsTools */
 
@@ -668,6 +668,46 @@
 			} );
 		},
 
+		// #13460
+		'test pasting a widget with lots of extra markup and mixed HTML case': function() {
+			var editor = this.editor;
+
+			this.editorBot.setData( '<p id="p1">A<span data-widget="test2" id="w1">A</span>B</p>', function() {
+				var widget = getWidgetById( editor, 'w1' ),
+					html = widget.wrapper.getOuterHtml();
+
+				editor.widgets.del( widget );
+
+				editor.focus();
+
+				var range = editor.createRange();
+				range.setStartAt( editor.document.getById( 'p1' ), CKEDITOR.POSITION_BEFORE_END );
+				range.collapse( true );
+				range.select();
+
+				editor.once( 'afterPaste', function() {
+					resume( function() {
+						var widget = getWidgetById( editor, 'w1' );
+
+						assert.isTrue( !!widget, 'widget was pasted' );
+						assert.areSame( '<p id="p1">AB<span data-widget="test2" id="w1">A</span></p>', editor.getData() );
+						assert.areSame( widget, editor.widgets.focused, 'widget is selected' );
+					} );
+				} );
+
+				// Ensure async.
+				wait( function() {
+					editor.execCommand( 'paste',
+						'<SPAN style="POSITION: absolute; WIDTH: 1px; HEIGHT: 1px; OVERFLOW: hidden; LEFT: -5000px">' +
+							'<SPAN data-cke-copybin-start="1" foo="1">\u200b</SPAN>' +
+								html +
+							'<SPAN data-cke-copybin-end="1">\u200b</SPAN>' +
+						'</SPAN>'
+					);
+				} );
+			} );
+		},
+
 		'test copying widget with context': function() {
 			var editor = this.editor;