CVE-2026-32500: MetaMax PHP File Inclusion Vulnerability

CVE-2026-32500 Overview

CVE-2026-32500 is a PHP Local File Inclusion (LFI) vulnerability affecting the CreativeWS MetaMax WordPress theme. The vulnerability stems from improper control of filename parameters used in PHP include/require statements, allowing attackers to include arbitrary local files from the server. This can lead to sensitive information disclosure, configuration file exposure, and potentially remote code execution if combined with other techniques such as log poisoning.

Critical Impact

Successful exploitation allows attackers to read sensitive files from the WordPress server, potentially exposing configuration credentials, database connection strings, and other critical system information that could lead to complete site compromise.

Affected Products

• CreativeWS MetaMax WordPress Theme versions up to and including 1.1.4
• WordPress installations using the MetaMax theme

Discovery Timeline

• 2026-03-25 - CVE-2026-32500 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-32500

Vulnerability Analysis

This vulnerability is classified as CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The MetaMax WordPress theme fails to properly sanitize user-supplied input before using it in PHP include or require statements. This allows an attacker to manipulate file path parameters to include arbitrary files from the local filesystem.

The network-accessible nature of this vulnerability means attackers can exploit it remotely without requiring authentication. While the attack complexity is considered high, successful exploitation can result in significant impact to confidentiality, integrity, and availability of the affected system.

Root Cause

The root cause of this vulnerability lies in insufficient input validation and sanitization within the MetaMax theme's file handling logic. When processing user-controlled input that specifies file paths, the application fails to implement proper path canonicalization, directory traversal prevention, or allowlist-based file validation. This oversight allows malicious actors to use directory traversal sequences (such as ../) or absolute paths to access files outside the intended directory scope.

Attack Vector

The vulnerability is exploitable over the network, making it accessible to remote attackers. The attack typically involves:

1. Identifying vulnerable parameters that accept file path input within the MetaMax theme
2. Crafting malicious requests containing directory traversal sequences
3. Including sensitive local files such as /etc/passwd, wp-config.php, or application log files
4. Potentially escalating the attack through log poisoning or by including files that contain user-controlled content

The vulnerability can be exploited through HTTP requests to the WordPress installation, targeting the specific theme functionality that processes file inclusion parameters. Attackers may leverage path traversal techniques using sequences like ....//....// to bypass basic filtering mechanisms.

Detection Methods for CVE-2026-32500

Indicators of Compromise

• Unusual HTTP requests containing directory traversal patterns (../, ....//, %2e%2e/) targeting theme files
• Web server logs showing attempts to access sensitive files like wp-config.php, /etc/passwd, or .htaccess
• Requests with URL-encoded path traversal sequences targeting MetaMax theme endpoints
• Access attempts to theme PHP files with unexpected query parameters containing file paths

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
• Configure WordPress security plugins to monitor for suspicious file inclusion attempts
• Implement file integrity monitoring on WordPress core and theme files
• Review web server access logs for anomalous requests to MetaMax theme components

Monitoring Recommendations

• Enable detailed logging on the WordPress installation and web server
• Set up alerts for requests containing common LFI payloads targeting theme directories
• Monitor for unusual file access patterns in PHP error logs
• Implement real-time log analysis to detect exploitation attempts

How to Mitigate CVE-2026-32500

Immediate Actions Required

• Deactivate and remove the MetaMax theme if not essential for site operation
• Switch to a different, actively maintained WordPress theme
• Implement WAF rules to block directory traversal attempts
• Restrict file system permissions to limit the impact of potential exploitation
• Review server logs for signs of prior exploitation attempts

Patch Information

At the time of publication, no official patch has been released for this vulnerability. Users of the MetaMax theme (versions up to and including 1.1.4) should consider this product end-of-life for security purposes. The recommended course of action is to replace the vulnerable theme with an alternative solution. For detailed vulnerability information, refer to the Patchstack WordPress Vulnerability Report.

Workarounds

• Disable or remove the MetaMax theme and switch to an alternative WordPress theme
• Implement strict WAF rules to filter requests containing path traversal sequences
• Use PHP open_basedir configuration to restrict file access to the WordPress directory
• Configure web server rules to block requests with suspicious patterns targeting theme files
• Consider implementing virtual patching through security plugins like Wordfence or Sucuri

# Apache .htaccess rules to block common LFI patterns
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (\.\./|\.\.\\) [NC,OR]
    RewriteCond %{QUERY_STRING} (\.\.%2f|\.\.%5c) [NC,OR]
    RewriteCond %{REQUEST_URI} (\.\./|\.\.\\) [NC]
    RewriteRule .* - [F,L]
</IfModule>

# PHP open_basedir restriction in php.ini or .user.ini
# open_basedir = /var/www/html/wordpress/