SAP Knowledge Base Article - Preview

3487559 - Getting a "403 ModSecurity Action" response when accessing SAP through the browser


Accessing an SAP system through the browser is not working.

While capturing an HTTP trace*, one or more requests are failing with a "403 ModSecurity Action" response.

One commonly affected scenario is accessing the WebGUI (either directly or within a Fiori environment - i.e., WebGUI based tile).

* the KBA 1990706 shows how to capture an HTTP trace (the trace steps are the same to any scenario)



  • SAP NetWeaver based product
  • ABAP Platform based product


ABAP platform all versions ; SAP NetWeaver all versions ; SAP Web Dispatcher all versions


KBA , BC-CST-IC , Internet Communication Manager , BC-MID-ICF , Internet Communication Framework , BC-CST , Client/Server Technology , BC-MID-RFC , RFC , Problem

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