REGEX

Learning Resources
RegexOne - Learn Regular Expressions - Lesson 1: An Introduction, and the ABCs
RegexOne provides a set of interactive lessons and exercises to help you learn regular expressions
regexone.com
ziishaned/learn-regex
Learn regex the easy way. Contribute to ziishaned/learn-regex development by creating an account on GitHub.
github.com
Filter Bypass
I'd say that mastering regular expressions could be enough to come up with bypasses.
XSS - Bypass this RegExp
How could this anti-xss regexp be bypassed: /&lt;(?:\w+)\W+?[\w]/

I am working on it but I can't find a way.

Just to be sure that I have understood it correctly, this regexp search for a pattern ...
security.stackexchange.com
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Last updated 11 months ago