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Silverstripe <= v2.3.4: XSS vulnerabilities

🗓️ 26 Jan 2010 00:00:00Reported by RootType 
seebug
 seebug
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Silverstripe v2.3.4 XSS vulnerabilities in comment posting and forum searc

Code

                                                Silverstripe CMS, <http://silverstripe.org/>, version 2.3.4 and lower
(and its unreleased 2.4 branch), is vulnerable to two Cross Site
Scripting issues.

1. The comment posting mechanism of Silverstripe ('PostCommentForm')
fails to properly sanitize the 'CommenterURL' parameter. This allows for
persistent injection of HTML or javascript code within existing HTML tags.

2. The forum module is vulnerable to a reflective XSS issue caused by
the search script failing to properly sanitize input to the 'Search'
parameter. When invoking this URL:
SILVERSTRIPESITE/forums/search/?Search=%22%20onmouseover=%22javascript:alert%280%29;%22
trying to reorder the search results will trigger execution of the
injected javascript code.

                              

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