{"id":"CVE-2026-84908","title":"The WPFunnels plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.12.13","summary":"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 (w…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-862"],"vendor":"getwpfunnels","product":"WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell","affected":["wpfunnels_funnel_builder_for_woocommerce_with_checkout_one_click_upsell <= 3.12.13"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T15:33:34.467","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84908","references":[{"url":"https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.12/includes/core/offer/class-wpfnl-offer.php#L166","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.12/includes/core/offer/class-wpfnl-offer.php#L213","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.12/includes/core/offer/class-wpfnl-offer.php#L71","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.13/includes/core/offer/class-wpfnl-offer.php#L166","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.13/includes/core/offer/class-wpfnl-offer.php#L213","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.13/includes/core/offer/class-wpfnl-offer.php#L71","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3675200%40wpfunnels&new=3675200%40wpfunnels","label":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5a24d442-56f9-4f6d-bff6-0eb354249895?source=cve","label":"security@wordfence.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-09T13:07:55.317127Z"},"ingestedAt":"2026-09-09T06:01:00.005Z","epss":0.00243,"epssPercentile":0.15823,"slug":"CVE-2026-84908","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}