<?xml version="1.0"?>
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		<id>https://docs-old.ckeditor.com/index.php?action=history&amp;feed=atom&amp;title=FCKeditor_2.x%2FDevelopers_Guide%2FConfiguration%2FConfiguration_Options%2FFlashUploadDeniedExtensions</id>
		<title>FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadDeniedExtensions - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://docs-old.ckeditor.com/index.php?action=history&amp;feed=atom&amp;title=FCKeditor_2.x%2FDevelopers_Guide%2FConfiguration%2FConfiguration_Options%2FFlashUploadDeniedExtensions"/>
		<link rel="alternate" type="text/html" href="https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;action=history"/>
		<updated>2026-04-26T15:38:17Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.29.1</generator>

	<entry>
		<id>https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1370&amp;oldid=prev</id>
		<title>W.olchawa at 13:16, 10 January 2008</title>
		<link rel="alternate" type="text/html" href="https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1370&amp;oldid=prev"/>
				<updated>2008-01-10T13:16:02Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;tr style='vertical-align: top;' lang='en'&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 13:16, 10 January 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l6&quot; &gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] empty and you will put something in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;deniedExtensions &lt;/del&gt;e.g.swf it will allow the upload of all the files exept the swf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] and put the unwanted ones in the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;deniedExtensions&lt;/del&gt;. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] empty and you will put something in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadDeniedExtensions &lt;/ins&gt;e.g.swf it will allow the upload of all the files exept the swf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] and put the unwanted ones in the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadDeniedExtensions&lt;/ins&gt;. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key ckeditor_docsold:diff:version:1.11a:oldid:1365:newid:1370 --&gt;
&lt;/table&gt;</summary>
		<author><name>W.olchawa</name></author>	</entry>

	<entry>
		<id>https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1365&amp;oldid=prev</id>
		<title>W.olchawa at 13:05, 10 January 2008</title>
		<link rel="alternate" type="text/html" href="https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1365&amp;oldid=prev"/>
				<updated>2008-01-10T13:05:31Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;tr style='vertical-align: top;' lang='en'&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 13:05, 10 January 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l6&quot; &gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] empty and you will put something in deniedExtensions e.g.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;pdf &lt;/del&gt;it will allow the upload of all the files exept the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;pdf&lt;/del&gt;. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] empty and you will put something in deniedExtensions e.g.&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;swf &lt;/ins&gt;it will allow the upload of all the files exept the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;swf&lt;/ins&gt;. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/FlashUploadAllowedExtensions|FlashUploadAllowedExtensions]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key ckeditor_docsold:diff:version:1.11a:oldid:1364:newid:1365 --&gt;
&lt;/table&gt;</summary>
		<author><name>W.olchawa</name></author>	</entry>

	<entry>
		<id>https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1364&amp;oldid=prev</id>
		<title>W.olchawa at 13:04, 10 January 2008</title>
		<link rel="alternate" type="text/html" href="https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1364&amp;oldid=prev"/>
				<updated>2008-01-10T13:04:54Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;tr style='vertical-align: top;' lang='en'&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 13:04, 10 January 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l6&quot; &gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;allowedExtensions&lt;/del&gt;|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;allowedExtensions&lt;/del&gt;]] empty and you will put something in deniedExtensions e.g.pdf it will allow the upload of all the files exept the pdf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;allowedExtensions&lt;/del&gt;|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;allowedExtensions&lt;/del&gt;]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadAllowedExtensions&lt;/ins&gt;|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadAllowedExtensions&lt;/ins&gt;]] empty and you will put something in deniedExtensions e.g.pdf it will allow the upload of all the files exept the pdf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadAllowedExtensions&lt;/ins&gt;|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadAllowedExtensions&lt;/ins&gt;]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key ckeditor_docsold:diff:version:1.11a:oldid:1363:newid:1364 --&gt;
&lt;/table&gt;</summary>
		<author><name>W.olchawa</name></author>	</entry>

	<entry>
		<id>https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1363&amp;oldid=prev</id>
		<title>W.olchawa at 13:04, 10 January 2008</title>
		<link rel="alternate" type="text/html" href="https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1363&amp;oldid=prev"/>
				<updated>2008-01-10T13:04:02Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;tr style='vertical-align: top;' lang='en'&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 13:04, 10 January 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadAllowedExtensions &lt;/del&gt;==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;FlashUploadDeniedExtensions &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This option specifies the flash upload extensions which you don't wish to use in FCKeditor. Example:&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This option specifies the flash upload extensions which you don't wish to use in FCKeditor. Example:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;pre&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;pre&amp;gt;FCKConfig.FlashUploadDeniedExtensions = &amp;quot;.(swf)$&amp;quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp;nbsp;&lt;/ins&gt;;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;FCKConfig.FlashUploadDeniedExtensions	= &amp;quot;.(swf)$&amp;quot; ;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/pre&amp;gt; &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/pre&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;If you leave this option empty none extension will be denied.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/allowedExtensions|allowedExtensions]] empty and you will put something in deniedExtensions e.g.pdf it will allow the upload of all the files exept the pdf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/allowedExtensions|allowedExtensions]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/allowedExtensions|allowedExtensions]] empty and you will put something in deniedExtensions e.g.pdf it will allow the upload of all the files exept the pdf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/allowedExtensions|allowedExtensions]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key ckeditor_docsold:diff:version:1.11a:oldid:1362:newid:1363 --&gt;
&lt;/table&gt;</summary>
		<author><name>W.olchawa</name></author>	</entry>

	<entry>
		<id>https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1362&amp;oldid=prev</id>
		<title>W.olchawa: New page: == FlashUploadAllowedExtensions ==  This option specifies the flash upload extensions which you don't wish to use in FCKeditor. Example: &lt;pre&gt; FCKConfig.FlashUploadDeniedExtensions	= &quot;.(sw...</title>
		<link rel="alternate" type="text/html" href="https://docs-old.ckeditor.com/index.php?title=FCKeditor_2.x/Developers_Guide/Configuration/Configuration_Options/FlashUploadDeniedExtensions&amp;diff=1362&amp;oldid=prev"/>
				<updated>2008-01-10T13:03:27Z</updated>
		
		<summary type="html">&lt;p&gt;New page: == FlashUploadAllowedExtensions ==  This option specifies the flash upload extensions which you don&amp;#039;t wish to use in FCKeditor. Example: &amp;lt;pre&amp;gt; FCKConfig.FlashUploadDeniedExtensions	= &amp;quot;.(sw...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== FlashUploadAllowedExtensions ==&lt;br /&gt;
&lt;br /&gt;
This option specifies the flash upload extensions which you don't wish to use in FCKeditor. Example:&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
FCKConfig.FlashUploadDeniedExtensions	= &amp;quot;.(swf)$&amp;quot; ;&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
If you leave this option empty none extension will be denied.&lt;br /&gt;
&lt;br /&gt;
'''NOTE''': if you leave [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/allowedExtensions|allowedExtensions]] empty and you will put something in deniedExtensions e.g.pdf it will allow the upload of all the files exept the pdf. However it isn't a good way to secure your server from unwanted uploads. The best way is to put all of the prefered extensions in [[FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/allowedExtensions|allowedExtensions]] and put the unwanted ones in the deniedExtensions. Only in this way you will secure your server from junk.&lt;/div&gt;</summary>
		<author><name>W.olchawa</name></author>	</entry>

	</feed>