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NavBoard Potential BBcode Script Insertion Vulnerability
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Secunia Advisory:
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SA18345
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Release Date:
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2006-01-09
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Last Update:
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2006-01-26
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Popularity:
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4,718 views
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | NavBoard 1.x
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| CVE reference: | CVE-2006-0140
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Description:
Aliaksandr Hartsuyeu has discovered a vulnerability in NavBoard, which potentially can be exploited by malicious people to conduct script insertion attacks.
Input passed via certain BBcode tags (e.g. url) isn't properly sanitised before being used. This can be exploited to inject arbitrary Javascript code, which will be executed in a user's browser session in context of an affected site when a malicious link with the "JavaScript" URI handler is followed from a malicious message.
Example:
[url=javascript:[code]]title[/url]
Successful exploitation requires that the Administrator has defined some BBcode tags that can be used in forum posts. This is not defined by default in version V16.
The vulnerability has been confirmed in version V16 (2.6.0) and also reported in version V17 beta2.
Solution:
Do not allow the use of BBcode tags or edit the source code to ensure that input is properly sanitised.
Provided and/or discovered by:
Aliaksandr Hartsuyeu
Changelog:
2006-01-26: Added CVE reference.
Original Advisory:
http://evuln.com/vulns/19/summary.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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