CVE-2025-53445: Axiomthemes Catwalk Path Traversal Flaw

CVE-2025-53445 Overview

CVE-2025-53445 is a PHP Local File Inclusion (LFI) vulnerability affecting the Axiomthemes Catwalk 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 type of vulnerability can lead to sensitive data exposure, source code disclosure, and potentially remote code execution when combined with other attack techniques.

Critical Impact

Unauthenticated attackers may exploit this vulnerability to read sensitive files, access configuration data including database credentials, and potentially achieve code execution on vulnerable WordPress installations.

Affected Products

• Axiomthemes Catwalk WordPress Theme version 1.4 and earlier
• WordPress installations using the Catwalk theme

Discovery Timeline

• 2025-12-18 - CVE-2025-53445 published to NVD
• 2026-01-20 - Last updated in NVD database

Technical Details for CVE-2025-53445

Vulnerability Analysis

This Local File Inclusion vulnerability exists due to insufficient validation and sanitization of user-controlled input before it is passed to PHP file inclusion functions such as include(), include_once(), require(), or require_once(). When exploited, an attacker can manipulate file path parameters to traverse directories and include files outside the intended scope.

The vulnerability allows unauthenticated network-based attacks, though successful exploitation requires some complexity in crafting the attack payload. When successfully exploited, the impact to confidentiality, integrity, and availability is significant, as attackers can potentially read sensitive configuration files, PHP source code, and other server-side resources.

Root Cause

The root cause is classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). The Catwalk theme fails to properly validate or sanitize filename parameters before using them in PHP include statements. This allows attackers to inject path traversal sequences (such as ../) or absolute paths to include arbitrary files from the local filesystem.

Attack Vector

The attack is network-accessible, meaning remote attackers can exploit this vulnerability without physical access to the server. The exploitation typically involves:

1. Identifying the vulnerable parameter that accepts filename input
2. Injecting path traversal sequences to escape the intended directory
3. Specifying a target file path to include (e.g., /etc/passwd, wp-config.php, or log files containing injected PHP code)
4. The server includes and potentially executes the contents of the specified file

The vulnerability can be escalated to Remote Code Execution (RCE) through techniques such as log file poisoning, PHP session file inclusion, or leveraging other upload functionalities to place malicious PHP code on the system.

Detection Methods for CVE-2025-53445

Indicators of Compromise

• Web server access logs containing path traversal sequences such as ../, ..%2f, or %2e%2e/ targeting theme-related endpoints
• Requests attempting to access sensitive files like /etc/passwd, wp-config.php, or PHP session files through theme parameters
• Unusual file access patterns in web application logs showing directory traversal attempts
• Error logs indicating failed file inclusion attempts or permission denied errors for sensitive paths

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
• Configure intrusion detection systems (IDS) to alert on LFI attack signatures targeting WordPress themes
• Monitor for anomalous requests to the Catwalk theme directory containing suspicious file path parameters
• Deploy file integrity monitoring to detect unauthorized access to sensitive configuration files

Monitoring Recommendations

• Enable detailed access logging on the web server and regularly review logs for suspicious activity
• Set up alerts for requests containing common LFI payloads such as .., %00, or references to sensitive system files
• Monitor WordPress audit logs for unusual theme-related activity
• Implement real-time log analysis to detect exploitation attempts before they succeed

How to Mitigate CVE-2025-53445

Immediate Actions Required

• Disable or remove the Axiomthemes Catwalk theme immediately if it is not actively needed
• Replace the vulnerable theme with an alternative that does not contain this vulnerability
• Implement WAF rules to block path traversal attempts targeting WordPress theme endpoints
• Review web server logs for evidence of prior exploitation attempts

Patch Information

At the time of publication, users should check with Axiomthemes for an updated version of the Catwalk theme that addresses this vulnerability. Refer to the Patchstack Vulnerability Report for the latest information on patches and remediation guidance.

Workarounds

• Implement strict input validation using a whitelist approach for any file inclusion parameters
• Configure open_basedir in PHP to restrict file access to the WordPress directory
• Disable PHP's allow_url_include directive if not already disabled to prevent potential escalation
• Use a virtual patching solution or WAF to block exploitation attempts while awaiting an official patch

# PHP configuration hardening example
# Add to php.ini or .htaccess
open_basedir = /var/www/html/
allow_url_include = Off
allow_url_fopen = Off