Im just reaching at the moment, I dont think its notepad++ specifically I just cant think of anything else at the moment. Anyway, like I said earlier Ive already cleaned every POST data in the entire site, even ones that users dont actually input since I read you can modify post data with some addon in firefox.

I already tried using different sql injections with the single quote and its doing ok. <script> inserts dont work too.

As for when I used notepad, its been a month already. I actually like using it it does work for me seriously. It just fails uploads sometimes and when it does it leaves the original file youre editing as blank.