Dexs PM System Wordpress Plugin - Authenticated Persistent XSS (0day)

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**************************PUBLIC SECURITY ADVISORY
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TITLE
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Dexs PM System - Authenticated Persistent Cross Site Scripting Vulnerability
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AUTHOR
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TheXero
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DATE
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10/14/2013
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VENDOR
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Sam Brishes - http://www.pytes.net/
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AFFECTED PRODUCT
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Dexs PM System Wordpress Plugin Version 1.0.1 possibly earlier
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VULNERABILITY CLASS
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Cross-Site Scripting
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DESCRIPTION
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Dexs PM System suffers from a persistent Cross-Site Scripting vulnerability
when sending a message as an authenticated user.* An account of at least
subscriber status is requested to exploit this vulnerability.
This vulnerability exists due to a lack of input validation and output 
sanitization of the subject paramater.
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PROOF OF CONCEPT
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Enter the following into the subject field when sending a message to another
user.
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--- SNIP ---
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XSS**********alert('xss');</script>
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--- SNIP ---
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If the message has been sent successfully a alert diolog will apear containing 
xss when an user checks there message in the dashboard.
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IMPACT
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An attacker could potentially hijack session authentication tokes of remote
users and leverage the vulnerability to increase the attack vector to the 
underlying software and operating system of the victim.
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THREAT LEVEL
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High
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STATUS
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0day
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DISCLAIMER
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nullsecurity.net hereby emphasize, that the information which is published here
are for education purposes only. nullsecurity.net does not take any 
responsibility for any abuse or misusage!