CVE-2026-22494: Good Homes Path Traversal Vulnerability

CVE-2026-22494 Overview

CVE-2026-22494 is a Local File Inclusion (LFI) vulnerability affecting the ThemeREX Good Homes 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 web server. This can lead to sensitive information disclosure, configuration exposure, and potentially remote code execution if combined with other attack vectors such as log poisoning.

Critical Impact

Unauthenticated attackers can exploit this LFI vulnerability to read sensitive server files, extract WordPress configuration data including database credentials, and potentially achieve code execution through log file poisoning or other chained exploits.

Affected Products

• ThemeREX Good Homes WordPress Theme versions through 1.3.13
• WordPress installations using vulnerable Good Homes theme versions

Discovery Timeline

• 2026-03-25 - CVE-2026-22494 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-22494

Vulnerability Analysis

This vulnerability is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The Good Homes WordPress theme fails to properly sanitize user-supplied input before passing it to PHP's include() or require() functions. This allows an attacker to manipulate file path parameters to include arbitrary files from the local file system.

The attack can be executed over the network without authentication, though it requires specific conditions to be exploitable, resulting in high attack complexity. When successfully exploited, the vulnerability can compromise the confidentiality, integrity, and availability of the affected system.

Root Cause

The root cause lies in insufficient input validation and sanitization of user-controlled parameters that are subsequently used in PHP file inclusion functions. The theme accepts file path inputs without properly restricting directory traversal sequences (such as ../) or validating that the requested file is within an allowed directory scope.

Attack Vector

The vulnerability is exploitable remotely via network requests to the WordPress installation. An attacker crafts malicious requests containing directory traversal sequences to navigate outside the intended directory structure and include sensitive system files such as /etc/passwd, wp-config.php, or server log files.

The attack typically involves:

1. Identifying vulnerable endpoints in the Good Homes theme that accept file path parameters
2. Injecting directory traversal sequences to escape the web root
3. Including sensitive local files to extract credentials or configuration data
4. Potentially chaining with log poisoning to achieve remote code execution

For detailed technical information about the vulnerability mechanics, refer to the Patchstack vulnerability advisory.

Detection Methods for CVE-2026-22494

Indicators of Compromise

• HTTP requests containing directory traversal patterns such as ../, ..%2f, or ....// targeting Good Homes theme endpoints
• Access attempts to sensitive files like wp-config.php, /etc/passwd, or system log files through theme parameters
• Unusual file access patterns in web server logs showing repeated path manipulation attempts
• Error logs indicating failed file inclusion attempts with unexpected file paths

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block directory traversal attempts in request parameters
• Monitor web server access logs for requests containing path traversal sequences targeting theme directories
• Deploy file integrity monitoring on sensitive configuration files to detect unauthorized read attempts
• Analyze application logs for PHP include/require errors that may indicate exploitation attempts

Monitoring Recommendations

• Enable verbose logging for WordPress theme file access operations
• Configure alerting for high-frequency requests containing traversal patterns from single IP addresses
• Monitor for unusual access patterns to the /wp-content/themes/good-homes/ directory structure
• Review server error logs for PHP file inclusion warnings or errors

How to Mitigate CVE-2026-22494

Immediate Actions Required

• Update the Good Homes theme to a patched version if available from ThemeREX
• If no patch is available, temporarily disable or remove the Good Homes theme from WordPress installations
• Implement WAF rules to block directory traversal patterns targeting the vulnerable theme
• Review server access logs for evidence of exploitation attempts
• Rotate credentials for any sensitive data that may have been exposed (database passwords, API keys)

Patch Information

Check the Patchstack advisory for the latest patch status and update information from ThemeREX. Organizations should verify that theme updates are applied promptly once a fix is released.

Workarounds

• Disable the vulnerable theme and switch to an alternative until a patch is available
• Implement server-level restrictions using .htaccess or nginx configuration to block requests with traversal patterns
• Apply virtual patching through a Web Application Firewall to filter malicious input
• Restrict PHP's open_basedir directive to limit file access scope for the WordPress installation
• Enable PHP's allow_url_include=Off directive to prevent remote file inclusion escalation

# Example nginx configuration to block directory traversal attempts
location ~ /wp-content/themes/good-homes/ {
    if ($request_uri ~* "\.\./") {
        return 403;
    }
    if ($query_string ~* "\.\./") {
        return 403;
    }
}