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High severity vulnerability in Formidable Forms (WordPress plugin). The Formidable Forms plugin for WordPress is vulnerable to a payment integrity bypass in all versions up to, and including, 6.28. This is due to the Stripe Link return handler (`handle_one_time_stripe_link_return_url`) marking payment records as complete based solely on the Stripe PaymentIntent status without comparing the intent's charged amount against the expected payment amount, and the `ve...
The Formidable Forms WordPress plugin versions up to 6.28 contain an authorization bypass vulnerability in the Stripe payment integration that allows unauthenticated attackers to manipulate PaymentIntent amounts before payment completion. An attacker can exploit the publicly exposed nonce in the `frm_strp_amount` AJAX handler to overwrite POST data and recalculate dynamic pricing fields, enabling payment of reduced amounts for goods or services. While the CVSS score is moderate at 5.3, the vulnerability has direct financial impact on e-commerce deployments and poses a meaningful risk to sites using dynamic pricing with Formidable Forms and Stripe.
High severity vulnerability in Formidable Forms (WordPress plugin). The Formidable Forms plugin for WordPress is vulnerable to a payment integrity bypass in all versions up to, and including, 6.28. This is due to the Stripe Link return handler (`handle_one_time_stripe_link_return_url`) marking payment records as complete based solely on the Stripe PaymentIntent status without comparing the intent's charged amount against the expected payment amount, and the `ve...
The Formidable Forms WordPress plugin versions up to 6.28 contain an authorization bypass vulnerability in the Stripe payment integration that allows unauthenticated attackers to manipulate PaymentIntent amounts before payment completion. An attacker can exploit the publicly exposed nonce in the `frm_strp_amount` AJAX handler to overwrite POST data and recalculate dynamic pricing fields, enabling payment of reduced amounts for goods or services. While the CVSS score is moderate at 5.3, the vulnerability has direct financial impact on e-commerce deployments and poses a meaningful risk to sites using dynamic pricing with Formidable Forms and Stripe.