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CVE-2026-3645— Punnel <= 1.3.1 - Missing Authorization to Authenticated (Subscriber+) Settings Update via 'punnel_save_config' AJAX Action

Quick assessment

Affected
punnel Punnel – Landing Page 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 Punnel – Landing Page Builder 1.3.1及之前版本存在安全漏洞，该漏洞源于缺少授权和非ce验证，可能导致经过身份验证的攻击者覆盖插件配置并利用API端点创建、更新或删除任意文章、页面和产

CVSS 5.3 · Medium EPSS 0.29% · P21
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I. Basic Information for CVE-2026-3645

Vulnerability Information
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Vulnerability Title
Punnel <= 1.3.1 - Missing Authorization to Authenticated (Subscriber+) Settings Update via 'punnel_save_config' AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
The Punnel – Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the 'punnel_save_config' AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's entire configuration including the API key via a POST request to admin-ajax.php. Once the API key is known (because the attacker set it), the attacker can use the plugin's public API endpoint (sniff_requests() at /?punnel_api=1) — which only validates requests by comparing a POST token against the stored api_key — to create, update, or delete arbitrary posts, pages, and products on the site.
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 plugin Punnel – Landing Page Builder 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 Punnel – Landing Page Builder 1.3.1及之前版本存在安全漏洞，该漏洞源于缺少授权和非ce验证，可能导致经过身份验证的攻击者覆盖插件配置并利用API端点创建、更新或删除任意文章、页面和产
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
punnel Punnel – Landing Page Builder * ~ 1.3.1 -

II. Public POCs for CVE-2026-3645

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III. Intelligence Information for CVE-2026-3645

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Patches & Fixes for CVE-2026-3645 (10)

Vendor Advisories for CVE-2026-3645 (1)

IV. Related Vulnerabilities

Same weakness: CWE-862

V. Comments for CVE-2026-3645

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