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Including no input/output sanitization which leads to XSS issues.


I did something similar for a university project to show why input/output sanitization is so important. Very simple project (~100 lines iirc) but it did the job!

https://github.com/annnoo/websocket-chatxss

In my oppinion the most fun thing you can inject is the "Katamari"-Script: http://kathack.com/




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