CVE-2026-6663— GWD Connect <= 2.9 - Unauthenticated Limited Code Execution via update_agent
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| thewebsitesupply | GWD Conex | ≤ 2.9 | affected |
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I. Basic Information for CVE-2026-6663
Vulnerability Information
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Vulnerability Title
GWD Connect <= 2.9 - Unauthenticated Limited Code Execution via update_agent
Source: NVD (National Vulnerability Database)
Vulnerability Description
The GWD Connect plugin for WordPress is vulnerable to missing authorization to limited code execution in all versions up to, and including, 2.9. This is due to the plugin's standalone agent endpoints (gwd-backup.php and gwd-logs.php) not verifying authentication when the API key has not been configured, which is the default state. This makes it possible for unauthenticated attackers - on unregistered installations only, in certain environments - to execute arbitrary code on the server via the update_agent action, which writes attacker-supplied PHP code to the agent file.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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 GWD Connect 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 GWD Connect 2.9及之前版本存在安全漏洞，该漏洞源于插件独立代理端点未验证身份验证，可能导致未经身份验证的攻击者在未注册安装上执行任意代码。
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 |
|---|---|---|---|---|
| thewebsitesupply | GWD Conex | 0 ~ 2.9 | - |
II. Public POCs for CVE-2026-6663
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-6663 (1)
Vendor Advisories for CVE-2026-6663 (1)
IV. Related Vulnerabilities
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Visualizer: Tables and Charts Manager for WordPress <= 3.11. - CVE-2026-8682
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SMTP2GO for WordPress <= 1.16.0 - Missing Authorization to A
V. Comments for CVE-2026-6663
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