How to avoid Cross Site Scripting problem on this code?

The lines of codes below are vulnerable to Cross Site Scripting problem as per Acunetix Web Security tool. My problem is changing it to something different but have similar behaviour and functionality. Anyone here? TIA
<asp:Content ID="Content5" ContentPlaceHolderID="MainContent" runat="server">
<input type="hidden" id="uscOrganizationIDHidden" name="uscOrganizationIDHidden" value='<%= this.BasicOrganizationId %>' />
<input type="hidden" id="uscAgreementTypeVersionId" name="uscAgreementTypeVersionId" value='<%= this.AgreementTypeVersionId %>' />
<input type="hidden" id="uscAgreementId" name="uscAgreementId" value='<%= this.AgreementId %>' />
<input type="hidden" id="uscOrganizationNameHidden" name="uscOrganizationNameHidden" value='<%= this.ServiceProviderName %>' />
...