CVE-2025-53440: Confidant Path Traversal Vulnerability

CVE-2025-53440 Overview

CVE-2025-53440 is a Local File Inclusion (LFI) vulnerability in the Axiomthemes Confidant WordPress theme. The flaw stems from improper control of filenames passed to PHP include/require statements, classified as [CWE-98]. Attackers can manipulate file path parameters to load arbitrary files from the server. The vulnerability affects all Confidant theme versions up to and including 1.4. Successful exploitation can lead to disclosure of sensitive files, execution of attacker-controlled PHP, and full compromise of the underlying WordPress site.

Critical Impact
Unauthenticated attackers can include local files via PHP include/require calls, potentially leading to source code disclosure, sensitive data exposure, and remote code execution on affected WordPress installations.

Affected Products

Axiomthemes Confidant WordPress Theme (all versions through 1.4)
WordPress sites running the Confidant theme as the active or parent theme
Child themes that inherit vulnerable Confidant template files

Discovery Timeline

2026-06-02 - CVE-2025-53440 published to NVD
2026-06-02 - Last updated in NVD database

Technical Details for CVE-2025-53440

Vulnerability Analysis

The Confidant theme passes user-controllable input into a PHP include or require statement without adequate validation or allow-listing. This pattern, tracked as [CWE-98], allows an attacker to influence which file the PHP interpreter loads at runtime. When PHP includes an attacker-influenced path, the file is parsed and executed in the context of the web application. The result depends on what the attacker can reach: configuration files, log files, session data, or uploaded content can all become execution vectors.

The attack vector is network-based and requires no authentication or user interaction. However, exploitation complexity is elevated, suggesting the attacker must satisfy specific path-handling or filter conditions to land a usable include. Confidentiality, integrity, and availability are all at risk if exploitation succeeds.

Root Cause

The root cause is improper control of the filename argument supplied to a PHP include construct. The theme accepts a request parameter and concatenates it into a file path used by include, include_once, require, or require_once. Without strict normalization, allow-listing, or realpath() containment checks, traversal sequences such as ../ and absolute paths can escape the intended directory.

Attack Vector

An unauthenticated remote attacker sends a crafted HTTP request to a vulnerable Confidant theme endpoint. The request contains a parameter that influences the file path resolved by the PHP include statement. By chaining path traversal with PHP wrappers or by pointing the include at attacker-influenced content (uploaded media, log files, session files), the attacker can disclose sensitive files or achieve PHP code execution. Refer to the Patchstack Confidant Theme Vulnerability advisory for further technical context.

Detection Methods for CVE-2025-53440

Indicators of Compromise

HTTP requests to Confidant theme PHP files containing path traversal sequences such as ../, ..%2f, or encoded variants in query parameters
Web server access logs showing requests referencing sensitive files like wp-config.php, /etc/passwd, or PHP session paths through theme endpoints
Unexpected PHP errors in logs referencing include() or require() failures with attacker-supplied paths
New or modified PHP files in wp-content/uploads/ or theme directories shortly after suspicious include requests

Detection Strategies

Inspect web access logs for query strings targeting files under /wp-content/themes/confidant/ that include file-path parameters
Deploy WordPress security plugins or web application firewall rules that flag LFI patterns and PHP wrapper schemes (php://, file://, data://)
Hash and baseline theme files, then alert on modifications outside of update windows
Correlate unauthenticated requests to theme PHP files with subsequent outbound connections or shell-like process activity on the host

Monitoring Recommendations

Enable verbose PHP error logging and forward logs to a central SIEM for path-traversal pattern matching
Monitor file integrity for wp-config.php, theme files, and uploads to detect post-exploitation persistence
Alert on first-seen User-Agent or IP combinations issuing repeated requests to Confidant theme endpoints with file parameters

How to Mitigate CVE-2025-53440

Immediate Actions Required

Identify all WordPress sites running the Axiomthemes Confidant theme version 1.4 or earlier
Disable or switch away from the Confidant theme until a vendor-supplied patched release is available and verified
Restrict access to the WordPress admin and theme endpoints behind a web application firewall with LFI signatures enabled
Rotate WordPress secrets in wp-config.php, database credentials, and any API keys stored on affected hosts

Patch Information

At the time of publication, the Patchstack advisory lists affected versions through 1.4 with no fixed version explicitly stated in the NVD record. Site owners should consult the Axiomthemes vendor channels for an updated release and apply it as soon as one is published. Until a patched version is confirmed, treat the theme as vulnerable.

Workarounds

Remove or rename the vulnerable PHP files within the Confidant theme that perform dynamic include/require based on request parameters
Deploy WAF rules blocking requests containing ../, URL-encoded traversal, and PHP wrapper schemes against theme paths
Set open_basedir and disable_functions in PHP configuration to constrain file access from web-facing scripts
Disable PHP execution within wp-content/uploads/ to limit RFI-to-RCE pivots through uploaded files

bash

# Example Apache configuration to block PHP execution in uploads
<Directory "/var/www/html/wp-content/uploads">
    <FilesMatch "\.(php|phtml|php5|phar)$">
        Require all denied
    </FilesMatch>
</Directory>

# Example php.ini hardening
open_basedir = /var/www/html:/tmp
allow_url_include = Off
allow_url_fopen = Off