The Business Essentials for Contact Form 7 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'gateway' Form Field in all versions up to, and including, 1.2.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the Payments module to be enabled and a form to be configured to accept both PayPal and Stripe as payment gateways.
The Contact Form 7 – PayPal & Stripe Add-on plugin for WordPress is vulnerable to Payment Bypass via Insufficient Verification of Data Authenticity in all versions up to, and including, 2.4.9. Although `cf7pp_paypal_ipn_handler()` correctly validates IPN authenticity by posting back to PayPal with `cmd=_notify-validate`, it fails to compare the IPN payload's `mc_gross` (payment amount), `mc_currency`, or `receiver_email` fields against the corresponding stored order values before passing the attacker-controlled `invoice` field directly to `cf7pp_complete_payment()`, which marks the order completed after only an integer cast with no amount verification. This makes it possible for unauthenticated attackers to mark arbitrary high-value pending orders as fully paid by making a minimal real PayPal payment and crafting an IPN whose `invoice` parameter references the targeted order, effectively completing purchases without tendering the required payment amount.
The Subscriptions & Memberships for PayPal plugin for WordPress is vulnerable to fake payment creation in all versions up to, and including, 1.1.7. This is due to the plugin not properly verifying the authenticity of an IPN request. This makes it possible for unauthenticated attackers to create fake payment entries that have not actually occurred.
The Time Clock – A WordPress Employee & Volunteer Time Clock Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data' parameter in all versions up to, and including, 1.3.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with Time Clock user credentials to inject arbitrary web scripts in pages that will execute whenever a user accesses an affected page.
The Subscriptions & Memberships for PayPal plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1.6. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to delete arbitrary posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The Accept Donations with PayPal & Stripe plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the rf parameter in all versions up to, and including, 1.4.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
The Contact Form 7 Redirect & Thank You Page plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'post' parameter in all versions up to, and including, 1.0.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
The Contact Form 7 Redirect & Thank You Page plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in all versions up to, and including, 1.0.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
The Contact Form 7 – PayPal & Stripe Add-on plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg & remove_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.3.1. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This is only exploitable when the leave a review notice is present in the dashboard.
The Easy PayPal Gift Certificate plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.2.3. This is due to missing or incorrect nonce validation on the 'wpppgc_plugin_options' function. This makes it possible for unauthenticated attackers to update the plugin's settings and inject malicious JavaScript via a forged request, granted they can trick a site administrator into performing an action such as clicking on a link.
The Easy PayPal Events plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.2.1. This is due to missing or incorrect nonce validation on the wpeevent_plugin_buttons() function. This makes it possible for unauthenticated attackers to delete arbitrary posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The Easy PayPal & Stripe Buy Now Button plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.8.3 and in Contact Form 7 – PayPal & Stripe Add-on all versions up to, and including 2.1. This is due to missing or incorrect nonce validation on the 'wpecpp_stripe_connect_completion' function. This makes it possible for unauthenticated attackers to modify the plugins settings and chance the stripe connection via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.