Path Traversal Vulnerability in Quick Playground Plugin for WordPress
CVE-2026-6403

7.5HIGH

Key Information:

Vendor

WordPress
Status
Quick Playground
Vendor
CVE Published:
15 May 2026

What is CVE-2026-6403?

The Quick Playground plugin for WordPress has a significant vulnerability due to inadequate path validation within the qckply_zip_theme() function. This security flaw allows attackers to manipulate the 'stylesheet' parameter, leading to potential exposure of sensitive files, including the wp-config file. Unauthenticated users can exploit this vulnerability to create ZIP archives that contain arbitrary files from the server's filesystem, risking the security of the entire site.

Affected Version(s)

Quick Playground 0 <= 1.3.3

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/quick-playgrou...
https://plugins.trac.wordpress.org/browser/quick-playgrou...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Athiwat Tiprasaharn
Itthidej Aramsri
.