Software: BLOG:CMS
Version: 4.0.0j
Type: Cross site scripting
Made public: July, 22th 2006
Vendor: F-ART AGENCY, Ltd. - Radek Hulбn
Page: http://blogcms.com/
Discovered by: David Vieira-Kurz
http://www.majorsecurity.de
http://www.majorsecurity.de/advisory/major_rls23.txt
BLOG:CMS 4.0.0j and prior
BLOG:CMS is the most complete, feature-packed, personal publishing system on the market, developed by Radek Hulбn. It
includes state-of-the-art weblog, forum, wiki engine, news aggregator (atom /rss), and photo gallery.
register_globals = On
Input passed directly to the "id" parameter 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.
It works with a script code like this:
>'><script>alert('MajorSecurity')</script><!–
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. You should also work with the "intval()" php-function to ensure that the input
is numeric.
Example:
<?php
$pass = htmlentities($_POST['pass']);
echo htmlspecialchars("<script");
$id = intval($_POST['id']);
?>
Set "register_globals" to "Off".