Woo Checkout For Digital Goods Cross-Site Request Forgery

An issue was discovered in the MULTIDOTS Woo Checkout for Digital Goods plugin 2.1 for WordPress. If an admin user can be tricked into visiting a crafted URL created by an attacker (via spear phishing/social engineering), the attacker can change the plugin settings. The function woo_checkout_settings_page in the file class-woo-checkout-for-digital-goods-admin.php doesn't do any check against wp-admin/admin-post.php Cross-site request forgery (CSRF) and user capabilities. (2018-05-31, CVE-2018-11633)

The absence of Anti-CSRF tokens may lead to a Cross-Site Request Forgery attack that can result in executing a specific application action as another logged in user, e.g. steal their account by changing their email and password or silently adding a new admin user account when executed from the administrator account.

The attacker may copy one of your web application forms, e.g. email/password change form.

The webpage will contain a form with the exact set of fields as the original application but with input values already provided and the submit button replaced with a Javascript code causing auto-submission. When the page is accessed the form will be immediately submitted and page contents replaced with a valid content or a redirect to your original application.

One of your application users who is already logged in can be then tricked to navigate to such malicious page e.g. by clicking a link in a phishing email, and the pre-populated form content will be submitted to your application like it would be submitted by your user.