CVE-2026-6403highCWE-22

CVE-2026-6403: high-severity vulnerability in davidfcarr Quick Playground

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

Published

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
davidfcarr · Quick Playground
Related CVEs — davidfcarr Quick Playground

In the same product, most dangerous first.

CVE-2026-1830CRITICALQuick Playground <= 1.3.1 - Missing Authorization to Unauthenticated Arbitrary File UploadEPSS 8.1%CVE-2026-2500MEDIUMQuick Playground <= 1.3.4 - Authenticated (Administrator+) Arbitrary File Read via 'filename' ParameterEPSS 0.3%