CVE-2025-58225: Axiomthemes Paragon Path Traversal Flaw

CVE-2025-58225 Overview

CVE-2025-58225 is a Local File Inclusion (LFI) vulnerability affecting the Axiomthemes Paragon WordPress theme through version 1.1. The flaw stems from improper control of filename input passed to PHP include or require statements, classified under [CWE-98]. Attackers can manipulate file path parameters to load arbitrary local PHP files within the web server context. Successful exploitation can lead to source code disclosure, configuration leakage, or execution of attacker-controlled PHP files already present on the server. The vulnerability is network-exploitable without authentication, though the attack complexity is high.

Critical Impact

Unauthenticated attackers can include arbitrary local PHP files, potentially leading to information disclosure and remote code execution when combined with file upload primitives.

Affected Products

• Axiomthemes Paragon WordPress theme versions through 1.1
• WordPress installations using the vulnerable Paragon theme
• Any site exposing the affected theme files to network requests

Discovery Timeline

• 2025-12-18 - CVE-2025-58225 published to NVD
• 2026-01-20 - Last updated in NVD database

Technical Details for CVE-2025-58225

Vulnerability Analysis

The vulnerability resides in PHP code within the Paragon theme that passes user-controlled input directly to include, include_once, require, or require_once statements. Without proper validation or sanitization, an attacker can manipulate the filename parameter to traverse the file system and load unintended PHP files. This class of bug is tracked as [CWE-98], Improper Control of Filename for Include/Require Statement.

The issue is scoped to PHP Local File Inclusion based on the advisory. Remote inclusion is generally blocked by default PHP configurations (allow_url_include=Off), but local inclusion remains exploitable when the theme exposes vulnerable entry points to unauthenticated HTTP requests.

Root Cause

The Paragon theme accepts request parameters and uses them to construct file paths for PHP inclusion without enforcing an allowlist or stripping path traversal sequences. The absence of input normalization permits sequences such as ../ and absolute paths to escape the intended directory. Any PHP file included this way executes with the privileges of the WordPress process.

Attack Vector

An unauthenticated attacker sends a crafted HTTP request to a vulnerable theme endpoint, supplying a file path parameter that resolves to an arbitrary local file. When the included file contains PHP code, that code executes server-side. Attackers commonly chain LFI with log poisoning, session file injection, or phar:// deserialization to achieve remote code execution. The high attack complexity reflects environmental conditions required for successful exploitation rather than payload difficulty.

No public proof-of-concept is currently available. Refer to the Patchstack WordPress Vulnerability advisory for additional technical details.

Detection Methods for CVE-2025-58225

Indicators of Compromise

• HTTP requests to Paragon theme PHP files containing ../, ..\, or URL-encoded traversal sequences (%2e%2e%2f) in query parameters
• Access log entries referencing sensitive files such as wp-config.php, /etc/passwd, or PHP session files via theme endpoints
• Unexpected PHP errors in web server logs referencing include() or require() with attacker-supplied paths
• Outbound connections or file modifications originating from the www-data or PHP-FPM process after suspicious theme requests

Detection Strategies

• Inspect web server access logs for theme file requests carrying file path parameters with traversal patterns or unusual extensions
• Deploy Web Application Firewall (WAF) rules targeting LFI payloads against /wp-content/themes/paragon/ paths
• Monitor PHP error logs for failed to open stream warnings tied to dynamic include statements
• Use file integrity monitoring on WordPress core, theme, and plugin directories to detect attacker-dropped files

Monitoring Recommendations

• Forward Apache, Nginx, and PHP-FPM logs into a centralized SIEM and alert on traversal indicators
• Baseline normal request patterns for the Paragon theme and alert on deviations such as new query parameters
• Track WordPress theme version inventory across hosted sites to identify exposure to Paragon ≤ 1.1

How to Mitigate CVE-2025-58225

Immediate Actions Required

• Deactivate the Paragon theme on any WordPress site running version 1.1 or earlier until a patched release is confirmed
• Apply a WAF rule blocking path traversal sequences and absolute path parameters targeting theme endpoints
• Audit wp-content/themes/paragon/ for unexpected files, modified timestamps, or webshells
• Rotate any secrets, database credentials, or API keys stored in wp-config.php if exploitation is suspected

Patch Information

No fixed version is identified in the available advisory. The vulnerability affects Paragon through version 1.1. Monitor the Patchstack advisory and the vendor's distribution channels for an updated theme release, and apply it as soon as it becomes available.

Workarounds

• Replace the Paragon theme with a maintained alternative until a vendor patch is released
• Set allow_url_include=Off and allow_url_fopen=Off in php.ini to limit inclusion attack surface
• Use open_basedir restrictions to confine PHP file access to the WordPress document root
• Restrict direct access to theme PHP files via web server configuration where the application does not require them

# Example Nginx configuration to block traversal sequences against the Paragon theme
location ~* /wp-content/themes/paragon/ {
    if ($args ~* "(\.\./|\.\.\\|%2e%2e|/etc/|wp-config)") {
        return 403;
    }
}

# Harden PHP include behavior
# /etc/php/8.x/fpm/php.ini
allow_url_include = Off
allow_url_fopen = Off
open_basedir = /var/www/html:/tmp