Question: if I create a textarea and the user enters some thread bb-tags, nothing will happen if you do not write a special function for this?

    1 answer 1

    The question is not specific. If you just have a certain form on the site that you can fill out, they don’t get anywhere at all from the data, then yes - whatever you type in, there won't be anything terrible. If the data is processed in PHP, then a vulnerability may also appear during processing, for example: BBCode XSS Howto .

    • and how to protect yourself? - vinnie