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What characters or character combinations are invalid when ValidateRequest is set to true?

I've tried looking at the Microsoft site and Googling this but nobody seems to have an answer aside from the < and the >. There's more to it than that though. I've noticed that the HTML entity starter of &# is invalid. Is there anything else? Does anyone have a complete list?

Thanks!

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hyprsleepy Avatar asked Jun 25 '10 14:06

hyprsleepy


1 Answers

List of characters by framework version

1.1 Framework Validation:

* &#
* <alpha, <!, </
* script
* On handlers like onmouseenter, etc…
* expression(
* Looks for these starting characters (‘<’, ‘&’, ‘o’, ‘O’, ‘s’, ‘S’, ‘e’, ‘E’)

This is obviously a pretty strict list of items that would trigger a validation error. In the 2.0 Framework, Microsoft decided to loosen the restrictions on this quite a bit. Below is the list of validation checks in the 2.0 Framework.

2.0 Framework Validation:

* &#
* <alpha, <!, </, <?
* Looks for these starting characters (‘<’, ‘&’)
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Tommy Avatar answered Sep 19 '22 12:09

Tommy