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CVE-2026-1830— Quick Playground <= 1.3.1 - Missing Authorization to Unauthenticated Arbitrary File Upload

Quick assessment

Affected
davidfcarr Quick Playground
Exploitation
Public or AI PoC available; prioritize validation
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 Quick Playground 1.3.1及之前版本存在安全漏洞，该漏洞源于REST API端点授权检查不足，可能导致远程代码执行。

CVSS 9.8 · Critical EPSS 8.09% · P95

Public Exploits 2

ExploitDB · 1 EDB-52596 [webapps]
Nuclei · 1 CVE-2026-1830.yaml [template]
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I. Basic Information for CVE-2026-1830

Vulnerability Information
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Vulnerability Title
Quick Playground <= 1.3.1 - Missing Authorization to Unauthenticated Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
The Quick Playground plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.1. This is due to insufficient authorization checks on REST API endpoints that expose a sync code and allow arbitrary file uploads. This makes it possible for unauthenticated attackers to retrieve the sync code, upload PHP files with path traversal, and achieve remote code execution on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Quick Playground 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 Quick Playground 1.3.1及之前版本存在安全漏洞，该漏洞源于REST API端点授权检查不足，可能导致远程代码执行。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
davidfcarr Quick Playground 0 ~ 1.3.1 -

II. Public POCs for CVE-2026-1830

# POC Description Source Link Shenlong Link
1 The Quick Playground plugin for WordPress is vulnerable to remote code execution in all versions up to, and including, 1.3.1. The plugin exposes a blueprint REST API endpoint (permission_callback: __return_true) that leaks the sync code, and an upload_image endpoint that accepts file uploads with path traversal in the filename parameter without sufficient authorization checks, which can be chained into arbitrary PHP file upload and RCE. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-1830.yaml POC Details
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III. Intelligence Information for CVE-2026-1830

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IV. Related Vulnerabilities

Same product: Quick Playground
Same vendor: davidfcarr
Same weakness: CWE-862

V. Comments for CVE-2026-1830

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