CVE-2025-54701: Thememove Unicamp Path Traversal Flaw

CVE-2025-54701 Overview

CVE-2025-54701 is a Local File Inclusion (LFI) vulnerability affecting the ThemeMove Unicamp WordPress theme. 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 vulnerability affects all versions of the Unicamp theme from the initial release through version 2.6.3.

The flaw is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program), which describes scenarios where user-controlled input influences file inclusion operations without adequate validation or sanitization.

Critical Impact

Unauthenticated attackers can exploit this vulnerability remotely to read sensitive files, potentially leading to full site compromise, credential theft, and arbitrary code execution through log poisoning or other LFI-to-RCE techniques.

Affected Products

• ThemeMove Unicamp WordPress Theme versions through 2.6.3

Discovery Timeline

• 2025-08-14 - CVE-2025-54701 published to NVD
• 2026-02-04 - Last updated in NVD database

Technical Details for CVE-2025-54701

Vulnerability Analysis

This Local File Inclusion vulnerability exists due to insufficient input validation on parameters that control PHP file inclusion operations within the Unicamp WordPress theme. The vulnerability allows unauthenticated remote attackers to manipulate file path parameters to include arbitrary files from the local file system.

When exploited successfully, attackers can read sensitive configuration files such as wp-config.php, access system files like /etc/passwd, and potentially achieve remote code execution through techniques like log file poisoning or PHP session file inclusion.

The vulnerability requires no authentication and can be exploited directly over the network with no user interaction required, making it particularly dangerous for publicly accessible WordPress installations using the Unicamp theme.

Root Cause

The root cause of this vulnerability lies in the improper handling of user-supplied input that is passed to PHP's include(), require(), include_once(), or require_once() functions. The Unicamp theme fails to properly validate and sanitize file path parameters before using them in file inclusion operations.

This allows attackers to use path traversal sequences (such as ../) to escape the intended directory and include files from arbitrary locations on the server's file system. The lack of input sanitization, combined with insufficient path normalization and missing allowlist validation, creates the conditions for exploitation.

Attack Vector

The attack is conducted over the network and targets WordPress sites running vulnerable versions of the Unicamp theme. An attacker can craft malicious HTTP requests containing path traversal payloads in vulnerable parameters.

Typical exploitation involves:

1. Identifying a vulnerable parameter that accepts file path input
2. Injecting path traversal sequences to navigate the file system
3. Including sensitive local files to extract credentials or configuration data
4. Potentially escalating to remote code execution via log poisoning or PHP wrapper abuse

The vulnerability can be exploited without authentication, and successful exploitation could lead to complete confidentiality, integrity, and availability impact on the affected system.

Detection Methods for CVE-2025-54701

Indicators of Compromise

• HTTP requests containing path traversal sequences (../, ..%2f, ..%252f) targeting Unicamp theme endpoints
• Access attempts to sensitive files such as wp-config.php, /etc/passwd, or log files through theme parameters
• Unusual file access patterns in web server logs involving the Unicamp theme directory
• Evidence of PHP wrapper usage (e.g., php://filter, php://input) in request parameters

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in requests to the Unicamp theme
• Monitor web server access logs for requests containing encoded or unencoded directory traversal sequences
• Deploy file integrity monitoring on critical WordPress configuration files and system files
• Use intrusion detection systems (IDS) with signatures for LFI attack patterns

Monitoring Recommendations

• Enable verbose logging for WordPress and the web server to capture detailed request information
• Set up alerts for access attempts to sensitive files from web-facing processes
• Monitor for unusual file read operations originating from the PHP process
• Review application logs for error messages related to failed file inclusion attempts

How to Mitigate CVE-2025-54701

Immediate Actions Required

• Update the Unicamp WordPress theme to a patched version beyond 2.6.3 immediately
• If no patch is available, consider temporarily disabling or removing the Unicamp theme
• Implement WAF rules to block path traversal patterns targeting the vulnerable theme
• Review web server logs for evidence of exploitation attempts
• Audit WordPress installations for signs of compromise including unauthorized file modifications

Patch Information

Organizations using the ThemeMove Unicamp WordPress theme should check for available updates through their WordPress dashboard or the theme vendor's website. For detailed vulnerability information and patch status, refer to the Patchstack Unicamp Theme Vulnerability advisory.

Workarounds

• Implement strict WAF rules to filter path traversal sequences (../, ..%2f, %2e%2e/) in all request parameters
• Restrict PHP's open_basedir directive to limit file system access to the WordPress installation directory
• Disable unused theme components and endpoints that may be vulnerable
• Consider switching to an alternative theme until an official patch is released
• Implement file system permissions that restrict the web server user from reading sensitive system files

# Example: Restrict PHP open_basedir in Apache configuration
<VirtualHost *:80>
    ServerName example.com
    DocumentRoot /var/www/html/wordpress
    
    # Restrict PHP file access to WordPress directory only
    php_admin_value open_basedir "/var/www/html/wordpress:/tmp"
    
    # Additional hardening
    php_admin_flag allow_url_include off
</VirtualHost>