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CVE-2026-6403— Quick Playground <= 1.3.3 - Unauthenticated Path Traversal to Arbitrary File Read via 'stylesheet' Parameter

Quick assessment

Affected
davidfcarr Quick Playground
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 Quick Playground 1.3.3及之前版本存在路径遍历漏洞，该漏洞源于qckply_zip_theme()函数中路径验证不足，直接将用户控制的stylesheet参数附加到主题根目录路径而未清理目录遍历序

CVSS 7.5 · High EPSS 1.20% · P67

Affected Version Matrix 1

VendorProduct Version RangeStatus
davidfcarr Quick Playground ≤ 1.3.3 affected
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I. Basic Information for CVE-2026-6403

Vulnerability Information
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Vulnerability Title
Quick Playground <= 1.3.3 - Unauthenticated Path Traversal to Arbitrary File Read via 'stylesheet' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Quick Playground plugin for WordPress is vulnerable to Path Traversal in versions up to and including 1.3.3. This is due to insufficient path validation in the qckply_zip_theme() function, which appends a user-controlled 'stylesheet' parameter directly to the theme root directory path without sanitizing directory traversal sequences. This makes it possible for unauthenticated attackers to trigger the creation of a ZIP archive containing arbitrary files from the server's filesystem — including wp-config.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Quick Playground 路径遍历漏洞
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 1.3.3及之前版本存在路径遍历漏洞，该漏洞源于qckply_zip_theme()函数中路径验证不足，直接将用户控制的stylesheet参数附加到主题根目录路径而未清理目录遍历序
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
davidfcarr Quick Playground 0 ~ 1.3.3 -

II. Public POCs for CVE-2026-6403

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III. Intelligence Information for CVE-2026-6403

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Patches & Fixes for CVE-2026-6403 (5)

IV. Related Vulnerabilities

Same product: Quick Playground
Same vendor: davidfcarr
Same weakness: CWE-22

V. Comments for CVE-2026-6403

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