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CVE-2026-12432— Stripe Payment Forms by WP Full Pay <= 8.4.3 - Missing Authorization to Unauthenticated Payment Record Manipulation via 'paymentIntentId' Parameter

Quick assessment

Affected
themeisle Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions
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.

Themeisle Stripe Payment Forms by WP Full Pay是Themeisle公司的一款通过WordPress实现支付表单功能的插件。 Themeisle Stripe Payment Forms by WP Full Pay 8.4.3及之前版本存在授权问题漏洞，该漏洞源于授权缺失，通过wpfs_update_failed_payment_status AJAX操作，可能导致未经验证的攻击者在获取有效Stripe Payment Intent ID后操作数据库中的支付记录

CVSS 5.3 · Medium EPSS 0.56% · P46

Affected Version Matrix 1

VendorProduct Version RangeStatus
themeisle Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions ≤ 8.4.3 affected
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I. Basic Information for CVE-2026-12432

Vulnerability Information
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Vulnerability Title
Stripe Payment Forms by WP Full Pay <= 8.4.3 - Missing Authorization to Unauthenticated Payment Record Manipulation via 'paymentIntentId' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The WP Full Stripe Free plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 8.4.3 via the wpfs_update_failed_payment_status AJAX action. The handler is registered through both wp_ajax_ and wp_ajax_nopriv_ hooks and the underlying update_failed_payment_status() function performs no capability check, no nonce verification, and no logged-in check before calling $this->db->updatePaymentByEventId() with attacker-controlled POST parameters. This makes it possible for unauthenticated attackers who can obtain a valid Stripe Payment Intent ID for the target site (Payment Intent IDs are exposed to the customer browser during normal Stripe.js checkout flows) to manipulate payment records in the site's database, marking previously successful payments as failed and overwriting failure codes and messages with attacker-supplied values.
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
Themeisle Stripe Payment Forms by WP Full Pay 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Themeisle Stripe Payment Forms by WP Full Pay是Themeisle公司的一款通过WordPress实现支付表单功能的插件。 Themeisle Stripe Payment Forms by WP Full Pay 8.4.3及之前版本存在授权问题漏洞，该漏洞源于授权缺失，通过wpfs_update_failed_payment_status AJAX操作，可能导致未经验证的攻击者在获取有效Stripe Payment Intent ID后操作数据库中的支付记录
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
themeisle Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions 0 ~ 8.4.3 -

II. Public POCs for CVE-2026-12432

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III. Intelligence Information for CVE-2026-12432

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Vendor Advisories for CVE-2026-12432 (1)

IV. Related Vulnerabilities

Same product: Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions
Same vendor: themeisle
Same weakness: CWE-862

V. Comments for CVE-2026-12432

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