The main thing you left off your list of things to watch for is JavasScript cross-site scripting. What do you have in place to prevent a person from putting JavaScript inside the text file that will execute when you display the text as HTML? Perhaps HTML::Strip would come in handy for that part. You are right to worry about possible Denial of Service attacks (continuous uploading). And yes, although it too can be fooled, a CAPTCHA is advisable either on the upload form or on the account-creation form.

In reply to Re: Upload security question by jZed
in thread Upload security question by Anonymous Monk

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