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  • S2-045

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Implement a Servlet filter which will validate Content-Type and throw away request with suspicious values not matching multipart/form-data.

Other option is to remove the File Upload Interceptor from the stack, just define your own custom stack and set it as a default - please read How do we configure an Interceptor to be used with every Action. This will work only for Struts 2.5 - 2.5.10.

Code Block
xml
xml
<interceptors>
    <interceptor-stack name="defaultWithoutUpload">
        <interceptor-ref name="exception"/>
        <interceptor-ref name="alias"/>
        <interceptor-ref name="servletConfig"/>
        <interceptor-ref name="i18n"/>
        <interceptor-ref name="prepare"/>
        <interceptor-ref name="chain"/>
        <interceptor-ref name="scopedModelDriven"/>
        <interceptor-ref name="modelDriven"/>
        <interceptor-ref name="checkbox"/>
        <interceptor-ref name="datetime"/>
        <interceptor-ref name="multiselect"/>
        <interceptor-ref name="staticParams"/>
        <interceptor-ref name="actionMappingParams"/>
        <interceptor-ref name="params"/>
        <interceptor-ref name="conversionError"/>
        <interceptor-ref name="validation">
            <param name="excludeMethods">input,back,cancel,browse</param>
        </interceptor-ref>
        <interceptor-ref name="workflow">
            <param name="excludeMethods">input,back,cancel,browse</param>
        </interceptor-ref>
        <interceptor-ref name="debugging"/>
    </interceptor-stack>
</interceptors>
<default-interceptor-ref name="defaultWithoutUpload"/>