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DVBBS Multiple Cross-Site Scripting Vulnerabilities
Secunia Advisory: SA16131
Release Date: 2005-07-20
Last Update: 2005-08-18
Popularity: 4,661 views

Critical:
Less critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Unpatched

Software:DVBBS 7.x

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CVE reference:CVE-2005-2318
CVE-2005-2588


Description:
Some vulnerabilities have been discovered in DVBBS, which can be exploited by malicious people to conduct cross-site scripting attacks.

1) Input passed to the "action" parameter in showerr.asp is not properly sanitised before being returned to users. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

Example:
http://[host]/showerr.asp?action=[code]

2) Input passed to the "title" parameter in boardhelp.asp is not properly sanitised before being returned to users. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

Example:
http://[host]/boardhelp.asp?boardid=0&act=2&title=[code]

The vulnerabilities have been confirmed in version 7.1.0. Prior versions may also be affected.

Solution:
Edit the source code to ensure that input is properly sanitised.

Provided and/or discovered by:
1) rUnViRuS
2) Lostmon

Changelog:
2005-07-26: Added CVE reference.
2005-08-08: Included additional information from Lostmon.
2005-08-18: Added CVE reference.

Original Advisory:
http://lostmon.blogspot.com/2005/08/dvbbs-multiple-variable-cross-site.html


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