CVE-2026-23975: Uxper Golo Path Traversal Vulnerability

CVE-2026-23975 Overview

CVE-2026-23975 is a Local File Inclusion (LFI) vulnerability discovered in the Golo WordPress theme developed by uxper. The vulnerability stems from improper control of filename parameters used in PHP include/require statements, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program).

This vulnerability allows attackers to manipulate file path parameters to include arbitrary local files from the server, potentially leading to sensitive data exposure, configuration file disclosure, or in some scenarios, remote code execution when combined with other attack vectors.

Critical Impact

Successful exploitation could allow attackers to read sensitive configuration files, access database credentials, or chain with file upload vulnerabilities to achieve remote code execution on affected WordPress installations.

Affected Products

• Golo WordPress Theme versions prior to 1.7.5
• WordPress installations running vulnerable Golo theme versions
• Websites using uxper Golo theme without the latest security patches

Discovery Timeline

• 2026-01-22 - CVE CVE-2026-23975 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2026-23975

Vulnerability Analysis

The Golo WordPress theme contains a PHP Local File Inclusion vulnerability that occurs when user-controlled input is passed directly to PHP include or require functions without proper validation or sanitization. This type of vulnerability falls under CWE-98 and represents a significant security risk for WordPress installations using the affected theme.

Local File Inclusion vulnerabilities in PHP applications typically manifest when dynamic file paths are constructed using unsanitized user input. In the context of the Golo theme, this allows an attacker to traverse the directory structure and include files outside the intended scope, potentially exposing sensitive system files such as /etc/passwd, WordPress configuration files like wp-config.php, or other critical server resources.

Root Cause

The root cause of this vulnerability is the improper validation and sanitization of user-supplied input before it is used in PHP's include(), require(), include_once(), or require_once() functions within the Golo theme code. The theme fails to implement proper input validation, path canonicalization, or allowlist-based file inclusion controls.

When user input containing directory traversal sequences (such as ../) is processed without sanitization, attackers can navigate outside the intended directory and access arbitrary files on the filesystem that are readable by the web server process.

Attack Vector

The attack vector for this vulnerability involves manipulating HTTP request parameters that are subsequently used to dynamically include PHP files. An attacker can craft malicious requests containing path traversal sequences to access sensitive files on the server.

The vulnerability manifests in the file inclusion mechanism within the Golo theme. Attackers typically exploit such vulnerabilities by injecting path traversal sequences (e.g., ../../../) into vulnerable parameters to navigate to sensitive files outside the intended directory. In WordPress environments, this could allow access to wp-config.php containing database credentials or other sensitive configuration data. For detailed technical information, refer to the Patchstack WordPress Vulnerability Advisory.

Detection Methods for CVE-2026-23975

Indicators of Compromise

• Unusual HTTP requests containing path traversal sequences (../, ..%2f, ..%252f) targeting Golo theme endpoints
• Web server access logs showing repeated requests with file path manipulation attempts
• Error logs containing file inclusion failures or unexpected file access attempts
• Successful access to sensitive files from non-standard request patterns

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
• Monitor server access logs for suspicious requests containing directory traversal sequences targeting theme files
• Deploy file integrity monitoring on critical WordPress files including wp-config.php
• Enable PHP error logging and monitor for file inclusion-related warnings or errors

Monitoring Recommendations

• Configure real-time alerting for access attempts to sensitive system files from web processes
• Implement log correlation to identify attack patterns across multiple endpoints
• Monitor for unusual file read operations originating from the WordPress document root
• Set up baseline monitoring for normal theme file access patterns to detect anomalies

How to Mitigate CVE-2026-23975

Immediate Actions Required

• Update the Golo WordPress theme to version 1.7.5 or later immediately
• Audit access logs for signs of exploitation attempts prior to patching
• Review server file permissions to ensure web server cannot access sensitive system files
• Consider temporarily disabling the Golo theme if immediate update is not possible

Patch Information

The vulnerability is addressed in Golo theme version 1.7.5 and later. Site administrators should update to the latest version through the WordPress admin dashboard or by manually downloading the patched version from the official source. For additional details on the vulnerability and patch, refer to the Patchstack WordPress Vulnerability Advisory.

Workarounds

• Implement a Web Application Firewall with rules to block path traversal patterns in request parameters
• Add server-level restrictions using open_basedir PHP directive to limit file access scope
• Configure ModSecurity or similar WAF modules with LFI detection rules
• Temporarily switch to an alternative WordPress theme until the update can be applied

# Configuration example - Add to Apache .htaccess or virtual host configuration
# Block common path traversal patterns
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (\.\./|\.\.\\) [NC]
    RewriteRule .* - [F,L]
</IfModule>

# PHP open_basedir restriction (add to php.ini or virtual host)
# php_admin_value open_basedir /var/www/html:/tmp