We have a form that when submitted, will transmit its data as XML to a public web service. I am concerned that that URL is being directly manipulated to post bogus entries to our system, completely bypassing the form itself. The form itself is already through an HTTPS connection. I believe we are using SOAP. What can we do to secure the form/service?

2 Answers 2


HTTPS will only prevent people from viewing the data en-route to the web service. It provides no method to authorize a request. You'll need to implement some authorization/authentication in the web service to make sure the people posting data are the ones that need to be posting data.


You need to validate user input on both the client side and the server side.

So if you have a form on the client side that checks to make sure the user input is less then 10 characters. The bot can simply bypass by making a request to your web service without your client. So you need to validate on the server side.

For example:

if you have a route on your web service:

route.post('api/signup/', function(req,res){
    //Where the user data is stored in req.body
   var userInput = req.body;

   if(userInput.length < 10){
     //write to database
      } else {

       //Don't write to database and return error message


This way if a bot decides to bypass your client side restrictions, you are still checking the constraints on the web service side

  • yes, there are many required fields on the form, as well as validation. we also have server side validations, as we use asp.net. so you are saying I need something on the web service end to validate as well?
    – Raquel
    Commented Mar 23, 2017 at 20:09

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .