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Can people see or change the values in “hidden” form variables?

April 26, 2017form hidden people values variables

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Can people see or change the values in “hidden” form variables?

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They sure can! The hidden variable is visible in the raw HTML that the server sends to the browser. To see the hidden variables, a user just has to select “view source” from the browser menu. In the same vein, there’s nothing preventing a user from setting hidden variables to whatever he likes and sending it back to your script. Don’t rely on hidden variables for security.