CVE-2026-22370: Marveland Path Traversal Vulnerability

CVE-2026-22370 Overview

CVE-2026-22370 is a PHP Local File Inclusion (LFI) vulnerability affecting the Marveland WordPress theme developed by axiomthemes. 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 flaw enables unauthenticated remote attackers to potentially read sensitive configuration files, access credentials, or execute arbitrary PHP code through log poisoning or other file inclusion techniques.

Critical Impact
Unauthenticated attackers can exploit this Local File Inclusion vulnerability to read sensitive files, potentially leading to information disclosure, credential theft, or remote code execution through chained attacks.

Affected Products

WordPress Marveland Theme versions up to and including 1.3.0
All installations of axiomthemes Marveland theme through version 1.3.0

Discovery Timeline

2026-02-20 - CVE-2026-22370 published to NVD
2026-02-20 - Last updated in NVD database

Technical Details for CVE-2026-22370

Vulnerability Analysis

This vulnerability is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The Marveland WordPress theme fails to properly sanitize user-controlled input before using it in PHP include() or require() statements. This allows attackers to manipulate file paths and include arbitrary files from the local file system.

Local File Inclusion vulnerabilities in PHP applications are particularly dangerous because they can be leveraged to read sensitive configuration files such as wp-config.php, which contains database credentials and authentication keys. Additionally, attackers may chain this vulnerability with log poisoning techniques or other file upload vulnerabilities to achieve remote code execution.

The network-accessible attack vector combined with no authentication requirements means any remote attacker can potentially exploit this vulnerability against affected WordPress installations.

Root Cause

The root cause of this vulnerability lies in insufficient input validation and sanitization within the Marveland theme's PHP code. User-supplied input is passed directly or with inadequate filtering to file inclusion functions, allowing path traversal sequences (such as ../) to reference files outside the intended directory scope. The theme fails to implement proper allowlisting of permitted files or adequate path canonicalization before file inclusion operations.

Attack Vector

The vulnerability is exploitable over the network without authentication. An attacker can craft malicious HTTP requests containing path traversal sequences or absolute file paths to include arbitrary local files. Typical attack patterns include:

The exploitation typically involves manipulating URL parameters or POST data that the theme uses to dynamically include PHP files. By injecting directory traversal sequences, an attacker can escape the intended include directory and access sensitive files anywhere on the file system that the web server process has read permissions for.

Common targets include /etc/passwd for user enumeration, wp-config.php for database credentials, and web server log files for potential log poisoning attacks that could lead to code execution.

Detection Methods for CVE-2026-22370

Indicators of Compromise

Web server access logs containing path traversal sequences (../, ..%2f, %2e%2e/) in URL parameters
Requests attempting to access sensitive files like /etc/passwd, wp-config.php, or log files through theme endpoints
Unusual file read operations from the web server process targeting files outside the WordPress installation directory
Error logs showing PHP warnings about failed file inclusions with suspicious paths

Detection Strategies

Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
Monitor for requests containing encoded directory traversal sequences targeting Marveland theme endpoints
Deploy file integrity monitoring to detect unauthorized access to sensitive configuration files
Review access logs for patterns indicating LFI exploitation attempts against WordPress themes

Monitoring Recommendations

Enable verbose logging for file access operations on the web server
Configure alerting for any requests matching known LFI attack patterns targeting WordPress theme directories
Monitor for unusual process behavior from the web server, particularly file reads outside normal WordPress operations
Implement real-time log analysis to correlate multiple LFI attempt indicators

How to Mitigate CVE-2026-22370

Immediate Actions Required

Update the Marveland WordPress theme to a patched version when available from axiomthemes
If no patch is available, consider temporarily deactivating the Marveland theme until a fix is released
Implement WAF rules to block path traversal attack patterns targeting your WordPress installation
Review server logs for any evidence of exploitation attempts or successful attacks
Audit file permissions to ensure sensitive files have restricted read access

Patch Information

A security advisory has been published by Patchstack detailing this vulnerability. WordPress site administrators should monitor the Patchstack WordPress Vulnerability Advisory for updates on available patches and remediation guidance. Contact axiomthemes directly for information on patched versions of the Marveland theme.

Workarounds

Deploy a Web Application Firewall with rules to block path traversal attempts
Use WordPress security plugins that provide virtual patching capabilities for known vulnerabilities
Restrict PHP's open_basedir configuration to limit file inclusion scope to the WordPress directory
Implement server-level access controls to block direct access to theme files where possible
Consider using file system permissions to prevent the web server from reading sensitive files outside the web root

bash

# Example PHP configuration to restrict file inclusion scope
# Add to php.ini or .htaccess (Apache with mod_php)
php_admin_value open_basedir /var/www/html/wordpress:/tmp

# Apache configuration to block path traversal patterns
<LocationMatch ".*(\.\./|%2e%2e%2f|%252e%252e%252f).*">
    Require all denied
</LocationMatch>