Input Validation Errors: The Core of Website Security Evils
In the past few years with the rise of technological innovations, there has been an increase in the number and sophistication of security breaches. Poor input validation has turned out to be the root cause of these embarrassing data breaches reported in the last few years. While compiling the code, the developers create input fields for the users to enter whatever they wish. The website is secure until the unchecked input fields are not used for hacking.
What Is Input Validation?
Websites processing input data from users or a wide range of systems should ensure that it is valid. Validation is carried on a variety of levels ranging from simply verifying the input types and lengths i.e. syntactic validation to ensuring the inserted values are valid in the application context i.e. semantic validation.
For websites, input validation is nothing but verifying the values inserted in the input field ensuring date, email address and other details inserted in the field are valid. This is the initial step for client-side validation performed directly in the browser and submitted values are verified on the server-side.
Input Validation is a commonly used method to check potentially dangerous inputs ensuring they are safe to be processed within the code.