What is the primary challenge in mitigating DOM-based XSS attacks?

  • Identifying and validating user input.
  • Recognizing and neutralizing malicious scripts in the client's browser.
  • Restricting the usage of third-party libraries.
  • Sanitizing output on the server side.
The primary challenge in mitigating DOM-based XSS attacks lies in recognizing and neutralizing malicious scripts in the client's browser. Unlike traditional server-side XSS, where the server can sanitize input and output, DOM-based XSS involves scripts executing on the client side, making it crucial to detect and eliminate threats within the user's browser environment.
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