Persistent Cross Site Script

Hi Guys, this is my first blog if I do something wrong forgive me, I am going to show one of my interesting finding which I found when I was new in security field. Still I'm new and tries to learn new things every day.

I found persistent cross site script in one of website. I cannot tell you the website name hope you will not mind. In this web application FistName and LastName was vulnerable, but when I enter payload in input field and save, payload was not executing.

I saw the FirstName and LastName are showing above, then something came to my mind, I enter half payload in the FisrtName field and other half in LastName field, whole payload were combined and showing above, and guess this time it executed.

Below are the POC....        




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