ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzamm_5.4.0.1/rzammcrossscripting.htm

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<meta name="DC.Title" content="Cross-site scripting" />
<meta name="abstract" content="WebSphere Portal enables Cross-site scripting (CSS) security protection by default. With CSS security protection enabled, the characters &#34;&gt;&#34; (greater than) and &#34;&lt;&#34; (less than) in form input are changed to the character entities &#34;&amp;gt;&#34; and &#34;&amp;lt;&#34;. This is done to minimize the security risk of malicious input which could disrupt portal content." />
<meta name="description" content="WebSphere Portal enables Cross-site scripting (CSS) security protection by default. With CSS security protection enabled, the characters &#34;&gt;&#34; (greater than) and &#34;&lt;&#34; (less than) in form input are changed to the character entities &#34;&amp;gt;&#34; and &#34;&amp;lt;&#34;. This is done to minimize the security risk of malicious input which could disrupt portal content." />
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<h1 class="topictitle1">Cross-site scripting</h1>
<div><p>WebSphere<sup>®</sup> Portal
enables Cross-site scripting (CSS) security protection by default. With CSS
security protection enabled, the characters "&gt;" (greater than) and "&lt;"
(less than) in form input are changed to the character entities "&amp;gt;"
and "&amp;lt;". This is done to minimize the security risk of malicious input
which could disrupt portal content.</p>
<p>Having CSS security protection enabled can cause problems with iSeries™ Access
portlets which rely on form input to retrieve information from the user. For
example, the iSeries Dynamic
SQL portlet uses a form to retrieve a SQL statement to run. Any "&gt;" or "&lt;"
characters in the statement are changed to "&amp;gt;" and "&amp;lt;".
When the modified statement is run, it fails with this message: <tt class="msgph">[SQL0104]
Token &amp; was not valid. Valid tokens: &lt; &gt; = &lt;&gt; &lt;= ...</tt> </p>
<p>WebSphere Portal
provides a configuration option to disable CSS security protection. Disabling
this protection avoids the problems associated with modifying form input;
however, the security implications associated with disabling this support
need to be considered. See the Troubleshooting section of the WebSphere Portal
documentation for more information.</p>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzammportletconcept.htm" title="Learn about portlets, cooperative portlets, and issues pertaining to WebSphere Portal's Cross Site Scripting (CSS) security protection configuration.">Portal concepts</a></div>
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<div class="relref"><strong>Related reference</strong><br />
<div><a href="rzammpfileconsiderations.htm" title="The following are considerations for files.">File considerations</a></div>
<div><a href="rzammdatabaseconsiderations.htm" title="The following considerations apply to using the iSeries Access for Web database functions in a Web application server environment.">Database considerations</a></div>
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