Dear W3 stuff,
As you are trying to develop websites and provides everything useful and the best services to the world , also I would like to provide a simple service to you, Actually I have discovered the XXS (reflected) vulnerability in this URL https://validator.w3.org/i18n-checker/check?uri= (Attached picture prove this) by doing a manual test and I didn’t go far more than testing. wherefore, let the security team check and patch it, and please let me know if you need any help.
I apologize to you if there is any breach of your policy, but I tried to keep your site secure.
Note: I am new in penetrating testing (white hat) world, so it’s nice to hear some words from you which supports me in my field :)
Best regards,
