CVE-2025-69075: Yolox Theme Local File Inclusion Flaw

CVE-2025-69075 Overview

CVE-2025-69075 is a PHP Local File Inclusion (LFI) vulnerability affecting the AncoraThemes Yolox 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 filesystem. This can lead to sensitive information disclosure, configuration file exposure, and potentially remote code execution when combined with other techniques.

Critical Impact

Attackers can exploit this vulnerability to read sensitive files from the WordPress installation, including configuration files containing database credentials, and potentially execute arbitrary PHP code through log file poisoning or other LFI-to-RCE techniques.

Affected Products

• AncoraThemes Yolox WordPress Theme version 1.0.15 and earlier
• WordPress installations using the Yolox theme

Discovery Timeline

• 2026-01-22 - CVE CVE-2025-69075 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2025-69075

Vulnerability Analysis

This vulnerability is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The Yolox WordPress theme fails to properly sanitize user-controlled input before passing it to PHP's file inclusion functions (include, require, include_once, or require_once). This improper input validation allows attackers to manipulate file path parameters and traverse directories to access files outside the intended scope.

Local File Inclusion vulnerabilities in WordPress themes are particularly dangerous because they can expose the wp-config.php file, which contains database credentials, authentication keys, and other sensitive configuration data. Additionally, if an attacker can write content to a log file or upload a file with PHP code, they may be able to escalate the LFI to achieve remote code execution.

Root Cause

The root cause of this vulnerability lies in the theme's failure to implement proper input validation and sanitization for file path parameters used in PHP include statements. The affected code likely accepts user input (such as a template name or partial path) and directly incorporates it into a file inclusion operation without adequately filtering directory traversal sequences like ../ or verifying that the resulting path points to an allowed file.

Attack Vector

An attacker can exploit this vulnerability by crafting malicious requests that include directory traversal sequences to access sensitive files on the server. The attack vector involves manipulating parameters that control which files are included by the PHP application. By supplying specially crafted input containing path traversal sequences, an attacker can break out of the intended directory structure and access arbitrary files that the web server process has permission to read.

Typical exploitation involves accessing files such as /etc/passwd on Linux systems to confirm the vulnerability, followed by targeting WordPress-specific files like wp-config.php that contain database credentials and security keys.

Detection Methods for CVE-2025-69075

Indicators of Compromise

• Web server access logs showing requests with directory traversal patterns (../, ..%2f, ..%5c) targeting Yolox theme files
• Requests containing path traversal sequences combined with sensitive file names like wp-config.php, /etc/passwd, or log files
• Unusual file read errors or access attempts in PHP error logs related to the Yolox theme
• Evidence of attempts to access files outside the theme's expected directory structure

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block requests containing path traversal patterns targeting the Yolox theme
• Configure intrusion detection systems (IDS) to alert on HTTP requests with characteristic LFI payload patterns
• Enable detailed WordPress access logging and regularly review for suspicious file inclusion attempts
• Use file integrity monitoring to detect unauthorized access to sensitive configuration files

Monitoring Recommendations

• Monitor web server logs for requests to Yolox theme endpoints containing ../ sequences or encoded variants
• Set up alerts for access attempts to wp-config.php or other sensitive WordPress files via non-standard paths
• Implement real-time log analysis to identify patterns consistent with LFI exploitation attempts
• Track any unexpected file read operations by the web server process outside normal WordPress directories

How to Mitigate CVE-2025-69075

Immediate Actions Required

• If using Yolox theme version 1.0.15 or earlier, consider temporarily disabling the theme until a patch is available
• Implement WAF rules to block requests containing directory traversal patterns targeting theme files
• Review server access logs for evidence of exploitation attempts
• Restrict file system permissions to limit the web server's ability to read sensitive files outside the web root
• Consider switching to an alternative WordPress theme if no security update is forthcoming

Patch Information

Check the Patchstack vulnerability database for the latest patch status and security advisories from AncoraThemes. Website administrators should monitor for theme updates and apply security patches as soon as they become available.

Workarounds

• Deploy a Web Application Firewall with rules specifically designed to detect and block Local File Inclusion attacks
• Use PHP's open_basedir directive to restrict file access to the WordPress installation directory
• Implement input validation at the server level using ModSecurity or similar tools to filter malicious requests
• Consider using a virtual patching solution to protect against exploitation while awaiting an official fix
• Regularly backup WordPress installations and maintain the ability to quickly restore from a known-good state

# Example: Restrict PHP file access using open_basedir in php.ini
# Add this to your server's PHP configuration
open_basedir = /var/www/html/wordpress:/tmp

# Example: Apache ModSecurity rule to block LFI attempts
SecRule REQUEST_URI "@contains ../" "id:1000,phase:1,deny,status:403,msg:'Path Traversal Attempt Blocked'"