CVE-2025-69397: ThemeREX Tint Path Traversal Vulnerability

CVE-2025-69397 Overview

CVE-2025-69397 is a Local File Inclusion (LFI) vulnerability affecting the ThemeREX Tint WordPress theme. The vulnerability stems from improper control of filename for include/require statements in PHP, classified as CWE-98 (PHP Remote File Inclusion). This flaw allows attackers to include arbitrary local files from the server, potentially leading to sensitive information disclosure, configuration file exposure, or in some cases, remote code execution when combined with other attack techniques.

Critical Impact

Unauthenticated attackers may exploit this LFI vulnerability to read sensitive server files, access WordPress configuration data, or chain with other vulnerabilities for complete server compromise.

Affected Products

• ThemeREX Tint WordPress Theme version 1.7 and earlier

Discovery Timeline

• 2026-02-20 - CVE-2025-69397 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2025-69397

Vulnerability Analysis

This vulnerability exists due to insufficient validation and sanitization of user-controlled input that is used within PHP include or require statements in the ThemeREX Tint WordPress theme. When file paths are constructed using unsanitized user input, attackers can manipulate these paths to include arbitrary files from the local file system.

The attack requires network access and does not require authentication, though exploitation complexity is elevated due to specific conditions that must be met. Successful exploitation can result in complete compromise of confidentiality, integrity, and availability of the affected system.

Root Cause

The root cause is improper control of filename parameters passed to PHP's include(), require(), include_once(), or require_once() functions. The Tint theme fails to properly validate or sanitize user-supplied input before incorporating it into file path constructions, allowing directory traversal sequences and arbitrary file inclusion.

Attack Vector

The vulnerability is exploitable over the network without requiring user interaction or authentication. An attacker can craft malicious requests containing path traversal sequences (such as ../) or absolute file paths to include sensitive files from the server's filesystem. Common targets include:

• WordPress configuration files (wp-config.php) containing database credentials
• System files like /etc/passwd for user enumeration
• Log files that may contain sensitive information
• Other PHP files to chain attacks for code execution

The vulnerability mechanism involves manipulating theme parameters or request variables that are directly passed to PHP file inclusion functions without proper path validation, allowing attackers to traverse outside the intended directory and include arbitrary local files. For detailed technical information, see the Patchstack WordPress Theme Vulnerability advisory.

Detection Methods for CVE-2025-69397

Indicators of Compromise

• Web server access logs containing directory traversal sequences (../, ..%2f, %2e%2e/) targeting theme endpoints
• Requests attempting to include sensitive files like /etc/passwd, wp-config.php, or other system configuration files
• Unusual access patterns to theme template files with manipulated parameters
• Error logs showing failed file inclusion attempts or path-related PHP warnings

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in requests
• Monitor HTTP request parameters for suspicious path manipulation characters and sequences
• Configure intrusion detection systems (IDS) to alert on LFI attack signatures
• Review web server logs for anomalous requests targeting theme files with unusual parameters
• Deploy runtime application self-protection (RASP) to detect file inclusion attacks

Monitoring Recommendations

• Enable detailed logging for WordPress theme file access and PHP include operations
• Set up alerts for requests containing path traversal indicators targeting the Tint theme directory
• Monitor for unusual file access patterns, particularly attempts to read configuration files
• Implement centralized log aggregation to correlate LFI attack attempts across multiple systems

How to Mitigate CVE-2025-69397

Immediate Actions Required

• Update the ThemeREX Tint theme to the latest patched version as soon as one becomes available
• Consider temporarily disabling or replacing the Tint theme if no patch is available
• Implement WAF rules to block path traversal attacks targeting WordPress theme endpoints
• Restrict file system permissions to limit the impact of potential file inclusion attacks
• Review server logs for evidence of exploitation attempts

Patch Information

No official patch has been confirmed at this time. Monitor the Patchstack WordPress Theme Vulnerability advisory and ThemeREX official channels for security updates. Users of ThemeREX Tint theme version 1.7 or earlier should prioritize applying updates as they become available.

Workarounds

• Deploy a Web Application Firewall (WAF) with rules to detect and block LFI attack patterns
• Implement server-level restrictions using open_basedir PHP directive to limit file access scope
• Use ModSecurity or similar tools to block requests containing path traversal sequences
• Consider switching to an alternative WordPress theme until a security patch is released
• Apply the principle of least privilege to web server file system permissions

# PHP configuration hardening example
# Add to php.ini to restrict file access scope
open_basedir = /var/www/html:/tmp

# Apache ModSecurity rule to block LFI attempts
SecRule REQUEST_URI|ARGS|REQUEST_BODY "@rx \.\./" \
    "id:100001,phase:2,deny,status:403,msg:'Path Traversal Attempt Blocked'"