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	<id>https://www.limswiki.org/index.php?action=history&amp;feed=atom&amp;title=LII%3AWeb_Application_Security_Guide%2FChecklist</id>
	<title>LII:Web Application Security Guide/Checklist - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://www.limswiki.org/index.php?action=history&amp;feed=atom&amp;title=LII%3AWeb_Application_Security_Guide%2FChecklist"/>
	<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;action=history"/>
	<updated>2026-04-04T22:18:39Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.36.1</generator>
	<entry>
		<id>https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26900&amp;oldid=prev</id>
		<title>Shawndouglas: Updated.</title>
		<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26900&amp;oldid=prev"/>
		<updated>2016-08-10T22:06:14Z</updated>

		<summary type="html">&lt;p&gt;Updated.&lt;/p&gt;
&lt;a href=&quot;https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;amp;diff=26900&amp;amp;oldid=26890&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Shawndouglas</name></author>
	</entry>
	<entry>
		<id>https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26890&amp;oldid=prev</id>
		<title>Shawndouglas: /* XML, JSON and general API security */ Links</title>
		<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26890&amp;oldid=prev"/>
		<updated>2016-08-10T21:42:33Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;XML, JSON and general API security: &lt;/span&gt; Links&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:42, 10 August 2016&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-l58&quot;&gt;Line 58:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 58:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==XML, JSON and general API security==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==XML, JSON and general API security==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Ensure proper access control to the API&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Ensure proper access control to the API&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;* Do not forget that you need to [[Web Application Security Guide/Cross-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;site_scripting_&lt;/del&gt;(XSS)|correctly escape all output to prevent XSS attacks]], that data formats like XML require [[Web Application Security Guide/XML and internal data escaping|special consideration]], and that protection against [[Web Application Security Guide/Cross-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;site_request_forgery_&lt;/del&gt;(CSRF)|&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cross&lt;/del&gt;-site request forgery (CSRF)]] is needed in many cases.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;* Do not forget that you need to [[&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;LII:&lt;/ins&gt;Web Application Security Guide/Cross-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;site scripting &lt;/ins&gt;(XSS)|correctly escape all output to prevent XSS attacks]], that data formats like XML require [[&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;LII:&lt;/ins&gt;Web Application Security Guide/XML and internal data escaping|special consideration]], and that protection against [[&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;LII:&lt;/ins&gt;Web Application Security Guide/Cross-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;site request forgery &lt;/ins&gt;(CSRF)|&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cross&lt;/ins&gt;-site request forgery (CSRF)]] is needed in many cases.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Use standard data formats like JSON with proven libraries, and use them correctly. This will probably take care of all your escaping needs.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Use standard data formats like JSON with proven libraries, and use them correctly. This will probably take care of all your escaping needs.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Make sure browsers do not misinterpret your document or allow cross-site loading&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Make sure browsers do not misinterpret your document or allow cross-site loading&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Shawndouglas</name></author>
	</entry>
	<entry>
		<id>https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26889&amp;oldid=prev</id>
		<title>Shawndouglas: /* Special files */ Missing link</title>
		<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26889&amp;oldid=prev"/>
		<updated>2016-08-10T21:41:44Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Special files: &lt;/span&gt; Missing link&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:41, 10 August 2016&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-l152&quot;&gt;Line 152:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 152:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Ensure crossdomain.xml and clientaccesspolicy.xml do not exist unless needed&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Ensure crossdomain.xml and clientaccesspolicy.xml do not exist unless needed&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* If used, ensure crossdomain.xml and clientaccesspolicy.xml allow access from trusted domains only&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* If used, ensure crossdomain.xml and clientaccesspolicy.xml allow access from trusted domains only&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;* Prevent users from uploading/changing special files&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;* Prevent users from uploading/changing special files &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(see [[LII:Web Application Security Guide/File upload vulnerabilities|file upload vulnerabilities section]])&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==SSL, TLS and HTTPS basics==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==SSL, TLS and HTTPS basics==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key limswiki:diff::1.12:old-26864:rev-26889 --&gt;
&lt;/table&gt;</summary>
		<author><name>Shawndouglas</name></author>
	</entry>
	<entry>
		<id>https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26864&amp;oldid=prev</id>
		<title>Shawndouglas: Created as needed.</title>
		<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26864&amp;oldid=prev"/>
		<updated>2016-08-10T19:37:01Z</updated>

		<summary type="html">&lt;p&gt;Created as needed.&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:37, 10 August 2016&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 colspan=&quot;2&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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 style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{TOC right}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Miscellaneous points==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Miscellaneous points==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Do '''not''' rely on Web Application Firewalls for security (however, consider using them to improve security)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Do '''not''' rely on Web Application Firewalls for security (however, consider using them to improve security)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key limswiki:diff::1.12:old-26863:rev-26864 --&gt;
&lt;/table&gt;</summary>
		<author><name>Shawndouglas</name></author>
	</entry>
	<entry>
		<id>https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26863&amp;oldid=prev</id>
		<title>Shawndouglas: Created as needed.</title>
		<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26863&amp;oldid=prev"/>
		<updated>2016-08-10T19:24:48Z</updated>

		<summary type="html">&lt;p&gt;Created as needed.&lt;/p&gt;
&lt;a href=&quot;https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;amp;diff=26863&amp;amp;oldid=26861&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Shawndouglas</name></author>
	</entry>
	<entry>
		<id>https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26861&amp;oldid=prev</id>
		<title>Shawndouglas: Transcluded, per John</title>
		<link rel="alternate" type="text/html" href="https://www.limswiki.org/index.php?title=LII:Web_Application_Security_Guide/Checklist&amp;diff=26861&amp;oldid=prev"/>
		<updated>2016-08-10T18:30:31Z</updated>

		<summary type="html">&lt;p&gt;Transcluded, per John&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{wikibooks::Web Application Security Guide/Checklist}}&lt;br /&gt;
==Notes==&lt;br /&gt;
This article is a direct transclusion of [https://en.wikibooks.org/wiki/Web_Application_Security_Guide/Checklist the Wikibooks article] and therefore may not meet the same editing standards as LIMSwiki.&lt;/div&gt;</summary>
		<author><name>Shawndouglas</name></author>
	</entry>
</feed>