Simple Machines Forum (SMF) XSS issue
title: Simple Machines Forum (SMF) XSS issue
author: Jose Carlos Norte
discovered by: Jose Carlos Norte
1. introduction
Simple machines forum is a popular scalable free bulletin board system written
in php over mysql database, the url of the project:
http://www.simplemachines.org/
2. XSS problem
SMF is vulnerable to XSS attacks in search functions, in a string passed in
base64 to search for re-fill the form search when we want to modify our search.
example:
index.php?action=search;params=bWF4YWdlfCd8Ij5YU1N8InxicmR8J3x8InxzaG93X2NvbXBsZXRlfCd8fCJ8c3ViamVjdF9vbmx5fCd8fCJ8c2VhcmNofCd8c3NzfCJ8c29ydF9kaXJ8J3xkZXNjfCJ8c29ydHwnfHJlbGV2YW5jZQ
there are diferent fields vulnerable and a XSS successfull attack is posible,
tested.
Solution:
i was unable to contact smf developer team.