asp.net: Ajaxcontrol toolkit: html editor: security: cross site attack

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ASP.NET

Ajax

security

Hi All,
I'm using ajaxcontrol tool kit for html editor.

I'm concerned to security and cross site attack on my website.

I used sanitizer for ajax toolkit by including it in web.config as below, please let me know if this is sufficient

<configuration>
<configSections>
  <sectionGroup name="system.web">
	<section name="sanitizer" 
      requirePermission="false" 
      type="AjaxControlToolkit.Sanitizer.ProviderSanitizerSection, 
        AjaxControlToolkit"/>
      </sectionGroup>
</configSections>
<system.web>
	<compilation targetFramework="4.0" debug="true"/>
	<sanitizer defaultProvider="AntiXssSanitizerProvider">
		<providers>
			<add name="AntiXssSanitizerProvider" 
            type="AjaxControlToolkit.Sanitizer.
              AntiXssSanitizerProvider"></add>
		</providers>
	</sanitizer>
</system.web>
</configuration>