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CVE-2026-84908— WPFunnels <= 3.12.13 - Missing Authorization to Unauthenticated Arbitrary Product Price Manipulation via 'wpfnl_load_payment' AJAX Action

Quick assessment

Affected
getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress WPFunnels是WordPress基金会的一款WooCommerce漏斗构建插件。 WordPress WPFunnels 3.12.13及之前版本存在授权问题漏洞，该漏洞源于缺少授权，插件将'wpfnl_load_payment' AJAX操作注册为可供未认证用户访问，且add_offer_product_to_cart()函数未执行nonce验证、能力检查以及未验证攻击者提供的product_id是否为step_id上配置的优惠产品，可能导致未认证攻击者将任意WooCommer

CVSS 5.3 · Medium EPSS 0.42% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell ≤ 3.12.13 affected
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I. Basic Information for CVE-2026-84908

Vulnerability Information
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Vulnerability Title
WPFunnels <= 3.12.13 - Missing Authorization to Unauthenticated Arbitrary Product Price Manipulation via 'wpfnl_load_payment' AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress WPFunnels 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress WPFunnels是WordPress基金会的一款WooCommerce漏斗构建插件。 WordPress WPFunnels 3.12.13及之前版本存在授权问题漏洞，该漏洞源于缺少授权，插件将'wpfnl_load_payment' AJAX操作注册为可供未认证用户访问，且add_offer_product_to_cart()函数未执行nonce验证、能力检查以及未验证攻击者提供的product_id是否为step_id上配置的优惠产品，可能导致未认证攻击者将任意WooCommer
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell 0 ~ 3.12.13 -

II. Public POCs for CVE-2026-84908

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III. Intelligence Information for CVE-2026-84908

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Other References for CVE-2026-84908 (1)

IV. Related Vulnerabilities

Same product: WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell
Same vendor: getwpfunnels
Same weakness: CWE-862