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CVE-2025-12535— SureForms <= 1.13.1 - Cross-Site Request Forgery Protection Bypass via Improper Nonce Distribution

Quick assessment

Affected
brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder
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 SureForms 1.13.1及之前版本存在跨站请求伪造漏洞，该漏洞源于插件通过wp_ajax_nopriv_rest-nonce动作向未验证用户分发通用WordPress REST API随机数，可能导致跨站请求

CVSS 5.3 · Medium EPSS 0.20% · P9
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I. Basic Information for CVE-2025-12535

Vulnerability Information
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Vulnerability Title
SureForms <= 1.13.1 - Cross-Site Request Forgery Protection Bypass via Improper Nonce Distribution
Source: CVE Program / CVE List V5
Vulnerability Description
The SureForms plugin for WordPress is vulnerable to Cross-Site Request Forgery Bypass in all versions up to, and including, 1.13.1. This is due to the plugin distributing generic WordPress REST API nonces (wp_rest) to unauthenticated users via the 'wp_ajax_nopriv_rest-nonce' action. While the plugin legitimately needs to support unauthenticated form submissions, it incorrectly uses generic REST nonces instead of form-specific nonces. This makes it possible for unauthenticated attackers to bypass CSRF protection on REST API endpoints that rely solely on nonce verification without additional authentication checks, allowing them to trigger unauthorized actions such as the plugin's own post-submission hooks and potentially other plugins' REST endpoints.
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
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin SureForms 跨站请求伪造漏洞
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 SureForms 1.13.1及之前版本存在跨站请求伪造漏洞，该漏洞源于插件通过wp_ajax_nopriv_rest-nonce动作向未验证用户分发通用WordPress REST API随机数，可能导致跨站请求
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
brainstormforce SureForms – Contact Form, Custom Form Builder, Calculator & More * ~ 1.13.1 -

II. Public POCs for CVE-2025-12535

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III. Intelligence Information for CVE-2025-12535

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IV. Related Vulnerabilities

Same product: SureForms – Contact Form, Payment Form & Other Custom Form Builder
Same vendor: brainstormforce
Same weakness: CWE-352

V. Comments for CVE-2025-12535

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