CVE-2025-39494: Qodeinteractive Wilmer Path Traversal

CVE-2025-39494 Overview

CVE-2025-39494 is a critical Local File Inclusion (LFI) vulnerability affecting the Wilmër WordPress theme developed by Mikado-Themes (Qodeinteractive). The vulnerability stems from improper control of filename parameters used in PHP include/require statements, allowing attackers to include arbitrary local files on the server. This can lead to unauthorized access to sensitive configuration files, source code disclosure, and potentially remote code execution when combined with other attack vectors.

Critical Impact

Unauthenticated attackers can exploit this LFI vulnerability to read sensitive files from the WordPress server, potentially exposing database credentials, configuration secrets, and enabling further system compromise.

Affected Products

• Qodeinteractive Wilmër WordPress Theme (versions through 3.4.2)
• WordPress installations using the Wilmër theme
• Sites utilizing Mikado-Themes/Qodeinteractive theme components

Discovery Timeline

• 2025-05-23 - CVE-2025-39494 published to NVD
• 2026-01-29 - Last updated in NVD database

Technical Details for CVE-2025-39494

Vulnerability Analysis

This vulnerability is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The flaw allows attackers to manipulate file path parameters that are subsequently used in PHP's include() or require() functions without adequate sanitization or validation.

The attack can be executed remotely over the network without authentication, making it particularly dangerous for public-facing WordPress installations. Successful exploitation enables attackers to read arbitrary files from the server filesystem, including sensitive configuration files like wp-config.php which contains database credentials.

Root Cause

The root cause of this vulnerability lies in insufficient input validation of user-controlled parameters that influence file inclusion paths within the Wilmër theme. When the theme processes certain requests, it fails to properly sanitize filename inputs before passing them to PHP include/require functions. This allows attackers to use directory traversal sequences (such as ../) to escape the intended directory and include arbitrary files from the server's filesystem.

Attack Vector

The vulnerability is exploited via network-based requests to the affected WordPress installation. An attacker can craft malicious HTTP requests containing specially formatted file path parameters designed to traverse the directory structure and include sensitive local files.

Typical exploitation involves:

1. Identifying vulnerable endpoints within the Wilmër theme that accept file path parameters
2. Crafting requests with directory traversal sequences to escape the web root
3. Targeting sensitive files such as /etc/passwd, wp-config.php, or log files
4. Extracting sensitive information or leveraging the inclusion for further attacks

When combined with file upload capabilities or log poisoning techniques, this LFI vulnerability can potentially be escalated to achieve remote code execution. For detailed technical information, refer to the Patchstack WordPress Vulnerability Report.

Detection Methods for CVE-2025-39494

Indicators of Compromise

• Unusual HTTP requests containing directory traversal patterns (e.g., ../, ..%2f, ....//) targeting Wilmër theme endpoints
• Web server access logs showing requests for sensitive system files through theme parameters
• Error logs indicating failed file inclusion attempts or permission denied errors for system files
• Unexpected file access patterns in web application firewall (WAF) logs

Detection Strategies

• Implement web application firewall rules to detect and block directory traversal patterns in request parameters
• Monitor access logs for requests containing encoded traversal sequences targeting theme files
• Deploy file integrity monitoring on critical WordPress configuration files
• Configure intrusion detection systems (IDS) to alert on LFI attack signatures

Monitoring Recommendations

• Enable verbose logging for WordPress and the web server to capture suspicious request patterns
• Set up real-time alerting for attempts to access sensitive files like wp-config.php through abnormal paths
• Regularly audit web server logs for reconnaissance activities targeting WordPress themes
• Implement security information and event management (SIEM) rules for LFI attack patterns

How to Mitigate CVE-2025-39494

Immediate Actions Required

• Update the Wilmër theme to the latest patched version immediately
• Audit WordPress installations for any signs of compromise or unauthorized file access
• Implement web application firewall rules to block directory traversal attempts
• Review and restrict file system permissions for the WordPress installation
• Consider temporarily disabling the Wilmër theme if an immediate patch is not available

Patch Information

Qodeinteractive has addressed this vulnerability in updated versions of the Wilmër theme. WordPress administrators should update to the latest available version through the theme management interface or by obtaining the updated theme package directly from the vendor. Consult the Patchstack vulnerability database for specific patch details and version information.

Workarounds

• Deploy a web application firewall (WAF) with rules specifically blocking LFI and directory traversal attacks
• Restrict PHP's open_basedir directive to limit file inclusion to the WordPress directory only
• Disable unnecessary theme functionality that may expose vulnerable endpoints
• Implement strict input validation at the server level for all file-related parameters

# Configuration example - Restrict PHP open_basedir in Apache
# Add to .htaccess or virtual host configuration
php_admin_value open_basedir "/var/www/html/wordpress:/tmp"

# Nginx configuration to block directory traversal
location ~ \.\. {
    deny all;
}

# ModSecurity rule to block LFI attempts
SecRule REQUEST_URI|ARGS|ARGS_NAMES "@rx (\.\./|\.\.\\)" \
    "id:1001,phase:1,deny,status:403,msg:'Directory Traversal Attack Blocked'"