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Calcium "EventText" Script Insertion Vulnerability
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Secunia Advisory:
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SA19007
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Release Date:
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2006-02-24
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Last Update:
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2006-03-02
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Popularity:
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6,170 views
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Critical:
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Moderately 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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Vendor Workaround
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| Software: | Calcium 3.x
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| CVE reference: | CVE-2006-0889
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Description:
KeyShore and KeyYog have discovered a vulnerability in Calcium, which can be exploited by malicious people to conduct script insertion attacks.
Input passed to the "EventText" parameter when adding a new event isn't properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious event is viewed.
The vulnerability has been confirmed in version 3.10.1. Other versions may also be affected.
Solution:
Disable the "HTML in Events" setting (enabled by default) on the "Display Settings" administration menu.
Grant only trusted users permissions to add events.
Provided and/or discovered by:
KeyShore and KeyYog
Changelog:
2006-02-27: Updated "Solution" section.
2006-03-02: Added CVE reference.
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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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