{"cve":"CVE-2026-6403","nvd":{"published":"2026-05-15T09:16:16.973","modified":"2026-06-17T11:00:47.197","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-22"],"references":["https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L62","https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/api.php#L631","https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L162","https://plugins.trac.wordpress.org/browser/quick-playground/tags/1.3.1/utility.php#L248","https://plugins.trac.wordpress.org/browser/quick-playground/trunk/api.php#L62"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-6403","score":0.00811,"percentile":0.56946,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}