SEPTEMBER 25, 2026
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Case File

CVE-2026-6403

HIGH · CVSS 7.5 EPSS 0.81%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-15 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-6403
Severity
HIGH
CVSS
7.5
EPSS
0.81%
WordPress

Original NVD 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.