Cross site scripting in Onecenter Forum 4.0

["David F. Madrid" <conde0 () telefonica net>]

Issue : cross site scripting in Onecenter forum

Affected Product : Onecenter forum 4.0

Description :

Onecenter offers a free discussion forum hosted in the company's servers (
forum.onecenter.com ) . Any user in the forum is identified by a cookie
that contains nick , name , mail address and password . This information
can be easily obtained as you can add in your posts the img html tag with
a custom script as follows

<img src=javascript:alert(document.cookie);>

To impersonate any user in the forum ( onecenter administrators would be a
good choice , as you can report posts to them ) you just have to build a
cookie like the one obtained and visit the forum .

-- 
Regards ,

David F. Madrid
Madrid , Spain




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