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WordPress NAB Transact WooCommerce 2.1.0 Payment Bypass Vulnerability
Author
Risk
![](/img/risk/critlow_3.gif)
Security Risk High
]0day-ID
Category
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CVE
Platform
Title: Payment bypass Product: WordPress NAB Transact WooCommerce Plugin Vendor Homepage: https://woocommerce.com/products/nab-transact-direct-post/ Vulnerable Version: 2.1.0 Fixed Version: 2.1.2 CVE Number: CVE-2020-11497 Author: Jack Misiura from The Missing Link Website: https://www.themissinglink.com.au Timeline: 2020-03-27 Disclosed to Vendor 2020-03-29 Vendor publishes first fix 2020-04-04 Vendor publishes second fix 2020-08-17 Fix confirmed 2020-08-20 Publication 1. Vulnerability Description The WordPress NAB Transact WooCommerce plugin does not validate the origin of payment processor status requests, allowing orders to be marked as fully paid by issuing a specially crafted GET request during the ordering workflow. 2. PoC When presented with a payment screen, instead of submitting payment information, issue the following GET request to the site: https://example-site.com/?wc-api=WC_Gateway_Nab_Direct_Post&order=XXXX&key= wc_order_YYYYY&is_crn=0&txnid=ZZZZZ&refid=WooCommerceXXXX&rescode=00&restext=Approved Where XXXX is the order number and YYYY is the order code which have been present before during the workflow. If these are not presented, submit invalid payment information and get a declined message. Now brute-force the order number which is sequential. Doing so will mark any existing pending orders as fully paid. 3. Solution The vendor provides an updated version (2.1.2) which should be installed immediately. # 0day.today [2024-07-03] #