CVE-2026-3601— User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification
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I. Basic Information for CVE-2026-3601
Vulnerability Information
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Vulnerability Title
User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification
Source: NVD (National Vulnerability Database)
Vulnerability Description
The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `embed_form_action()` function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin User Registration & Membership 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 User Registration & Membership 5.1.4及之前版本存在安全漏洞，该漏洞源于embed_form_action函数缺少权限检查，可能导致认证攻击者（贡献者级别及以上）向任意页面追加短代码
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 |
|---|---|---|---|---|
| wpeverest | User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder | 0 ~ 5.1.4 | - |
II. Public POCs for CVE-2026-3601
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
- CVE-2026-6203
User Registration & Membership <= 5.1.4 - Unauthenticated Op - CVE-2026-1865
User Registration & Membership <= 5.1.2 - Authenticated (Sub - CVE-2026-4056
User Registration & Membership <= 5.1.4 - Missing Authorizat - CVE-2026-1492
User Registration & Membership <= 5.1.2 - Unauthenticated Pr - CVE-2026-1779
User Registration & Membership <= 5.1.2 - Authentication Byp
Same vendor: wpeverest
- CVE-2026-4882
User Registration Advanced Fields <= 1.6.20 - Unauthenticate - CVE-2026-42652
WordPress User Registration plugin <= 5.1.5 - Cross Site Scr - CVE-2026-5478
Everest Forms <= 3.4.4 - Unauthenticated Arbitrary File Read - CVE-2026-6203
User Registration & Membership <= 5.1.4 - Unauthenticated Op - CVE-2026-1865
User Registration & Membership <= 5.1.2 - Authenticated (Sub
Same weakness: CWE-862
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Kirby: User avatar creation, replacement and deletion are no - CVE-2026-42137
Kirby: `pages.access/list` and `files.access/list` permissio
V. Comments for CVE-2026-3601
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