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Editorial Team
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Asked: 2026-05-21T14:07:58+00:00

I was reading some questions trying to find a good solution to preventing XSS

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I was reading some questions trying to find a good solution to preventing XSS in user provided URLs(which get turned into a link). I’ve found one for PHP but I can’t seem to find anything for .Net.

To be clear, all I want is a library which will make user-provided text safe(including unicode gotchas?) and make user-provided URLs safe(used in a or img tags)

I noticed that StackOverflow has very good XSS protection, but sadly that part of their Markdown implementation seems to be missing from MarkdownSharp. (and I use MarkdownSharp for a lot of my content)

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  1. Editorial Team

    Microsoft has the Anti-Cross Site Scripting Library; you could start by taking a look at it and determining if it fits your needs. They also have some guidance on how to avoid XSS attacks that you could follow if you determine the tool they offer is not really what you need.

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