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CVE-2026-4986— WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery

Quick assessment

Affected
Unknown WPForms
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin WPForms 1.10.0.5之前版本存在安全漏洞，该漏洞源于未验证传入PayPal webhook事件的真实性，可能导致未经身份验证的攻击者伪造webhook有效载荷并操纵任意交易的支付状态。

AI Predicted 7.5 Difficulty: Easy EPSS 0.33% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown WPForms 1.10.0.1< 1.10.0.5 affected
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I. Basic Information for CVE-2026-4986

Vulnerability Information
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Vulnerability Title
WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery
Source: CVE Program / CVE List V5
Vulnerability Description
The WPForms WordPress plugin before 1.10.0.5 does not verify the authenticity of incoming PayPal webhook events before processing them, allowing unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transactions.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin WPForms 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin WPForms 1.10.0.5之前版本存在安全漏洞，该漏洞源于未验证传入PayPal webhook事件的真实性，可能导致未经身份验证的攻击者伪造webhook有效载荷并操纵任意交易的支付状态。
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
Unknown WPForms 1.10.0.1 ~ 1.10.0.5 -

II. Public POCs for CVE-2026-4986

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III. Intelligence Information for CVE-2026-4986

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Vendor Advisories for CVE-2026-4986 (1)

IV. Related Vulnerabilities

Same product: WPForms
Same vendor: Unknown

V. Comments for CVE-2026-4986

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