How do you avoid XSS vulnerabilities in ASP.Net (MVC)?

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There’s a few ways:

  • Use the <%: %> syntax in ASP.NET MVC2 / .NET 4.0. (Which is just syntactic sugar for Html.Encode())
  • Follow the directions laid out by Phil Haack where it details using the Anti-XSS library as the ‘default’ encoding engine for ASP.NET.

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