CVE-2025-39359: CWW Portfolio LFI Vulnerability

CVE-2025-39359 Overview

CVE-2025-39359 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability affecting the CWW Portfolio WordPress theme developed by codeworkweb. This Local File Inclusion (LFI) vulnerability allows attackers to manipulate file include statements, potentially leading to unauthorized access to sensitive files on the server or remote code execution under certain conditions.

Critical Impact

This vulnerability enables attackers to include arbitrary local files from the WordPress server, potentially exposing sensitive configuration files, credentials, or enabling further exploitation through PHP filter chains.

Affected Products

• CWW Portfolio WordPress Theme version 1.3.1 and earlier
• All versions from initial release through version 1.3.1

Discovery Timeline

• 2025-04-24 - CVE CVE-2025-39359 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-39359

Vulnerability Analysis

The CWW Portfolio WordPress theme contains a PHP Local File Inclusion vulnerability categorized under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). This vulnerability type occurs when user-controllable input is passed to PHP's file inclusion functions (include, require, include_once, or require_once) without proper sanitization or validation.

In the context of WordPress themes, LFI vulnerabilities typically arise when template files or components are dynamically loaded based on user input, such as URL parameters or form submissions. An attacker can manipulate these inputs to traverse the directory structure and include arbitrary files from the server's filesystem.

Root Cause

The root cause of this vulnerability is inadequate input validation and sanitization of user-supplied data before it is used in PHP file inclusion statements. The CWW Portfolio theme fails to properly validate or sanitize file path parameters, allowing path traversal sequences (such as ../) to escape the intended directory and access files elsewhere on the server.

This is a common vulnerability pattern in WordPress themes where dynamic template loading is implemented without security controls such as:

• Whitelist validation of allowed files
• Proper path canonicalization
• Removal of directory traversal sequences
• Restriction of include paths to specific directories

Attack Vector

An attacker can exploit this vulnerability by crafting malicious requests that include path traversal sequences to access sensitive files on the WordPress server. Common attack scenarios include:

1. Configuration File Disclosure: Attackers may target wp-config.php to obtain database credentials, authentication keys, and other sensitive configuration data.

2. Log File Inclusion: If attackers can poison log files with PHP code, they can achieve remote code execution by including those log files through the LFI vulnerability.

3. Session File Inclusion: Attackers may attempt to include PHP session files to hijack user sessions or inject malicious code.

4. PHP Filter Chain Exploitation: Advanced attackers may leverage PHP filter wrappers to convert data streams and potentially achieve code execution without requiring log poisoning.

The vulnerability affects WordPress installations running the CWW Portfolio theme version 1.3.1 or earlier. For detailed technical information, refer to the Patchstack security advisory.

Detection Methods for CVE-2025-39359

Indicators of Compromise

• Unusual web server log entries containing path traversal sequences such as ../, ..%2f, or ..%252f targeting the CWW Portfolio theme endpoints
• HTTP requests with encoded directory traversal patterns in URL parameters or POST data
• Access attempts to sensitive files such as /etc/passwd, wp-config.php, or log files through theme-related URLs
• Suspicious file access patterns in PHP error logs indicating failed or successful file inclusion attempts

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in requests targeting WordPress theme endpoints
• Monitor web server access logs for suspicious requests containing ../ sequences, null bytes (%00), or PHP wrapper schemes (php://, file://)
• Deploy file integrity monitoring on critical WordPress configuration files to detect unauthorized access
• Configure intrusion detection systems to alert on common LFI exploitation patterns targeting the CWW Portfolio theme

Monitoring Recommendations

• Enable verbose PHP error logging to capture failed file inclusion attempts
• Configure SIEM alerts for path traversal patterns in web application logs
• Monitor for unusual file read operations on sensitive system files through endpoint detection tools
• Implement real-time log analysis for patterns associated with LFI exploitation attempts

How to Mitigate CVE-2025-39359

Immediate Actions Required

• Update the CWW Portfolio WordPress theme to the latest patched version if available from the vendor
• If no patch is available, consider temporarily disabling or removing the CWW Portfolio theme until a fix is released
• Implement Web Application Firewall rules to block path traversal attempts targeting the vulnerable theme
• Review web server logs for any evidence of exploitation attempts

Patch Information

Users should check the WordPress theme repository or the codeworkweb vendor website for an updated version of the CWW Portfolio theme that addresses this vulnerability. The Patchstack advisory may contain additional information about available fixes.

Workarounds

• Implement WAF rules to filter requests containing path traversal sequences (../, encoded variants, and null bytes)
• Use PHP's open_basedir directive to restrict file access to the WordPress installation directory
• Apply file system permissions to limit the web server's read access to sensitive configuration files
• Consider using a virtual patching solution like Patchstack to protect against exploitation while awaiting an official fix

# Configuration example - Add to .htaccess to block common LFI patterns
RewriteEngine On
RewriteCond %{QUERY_STRING} (\.\./) [NC,OR]
RewriteCond %{QUERY_STRING} (\.\.%2f) [NC,OR]
RewriteCond %{QUERY_STRING} (\.\.%252f) [NC]
RewriteRule .* - [F,L]

# PHP configuration to restrict file access (add to php.ini or .user.ini)
# open_basedir = /var/www/html/wordpress/