[MajorSecurity Advisory #37]HolaCMS - Cross Site Scripting Issue

Details
=======
Product: holaCMS-1.4.10 
Security-Risk: moderated
Remote-Exploit: yes
Vendor-URL: http://www.hola.com/
Vendor-Status: informed
Advisory-Status: published

Credits
============
Discovered by: David Vieira-Kurz
http://www.majorsecurity.de

Original Advisory:
============
http://www.majorsecurity.de/index_2.php?major_rls=major_rls37

Introduction
============
HolaCMS is a Content Management System.

More Details
============
Cross Site Scripting:
Input passed directly to the "acuparam" parameter in "index_cms.php" is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. 

Workaround
=============
Edit the source code to ensure that input is properly sanitised.
You should work with "htmlspecialchars()" or "htmlentities()" php-function to ensure that html tags
are not going to be executed. 

Example:
$pass = htmlentities($_POST['pass']);
$test = htmlspecialchars($_GET('test'));
?>

History/Timeline
================
24.03.2007 discovery of the vulnerability
25.03.2007 additional tests with other versions
25.04.2007 contacted the vendor
02.04.2007 advisory is written
03.04.2007 advisory released

MajorSecurity
=======
MajorSecurity is a German penetration testing and security research project
which consists of only one person at the present time.
Currently looking for a site sponsor.
http://www.majorsecurity.de/