CVE-2026-84908

The WPFunnels plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.12.13. This is due to the plugin registering the 'wpfnl load payment' AJAX action for both authenticated and unauthenticated (wp ajax nopriv ) users and the underlying add offer product to cart() function performing no nonce verification, no capability check, and no validation that the attacker-supplied product id is the offer product actually configured on the attacker-supplied step id. This makes it possible for unauthenticated attackers to add arbitrary WooCommerce products to a cart at any discounted price configured on any funnel step, enabling price manipulation and revenue loss at checkout.