CVE-2025-69174: Etude Path Traversal Vulnerability

CVE-2025-69174 Overview

CVE-2025-69174 is an unauthenticated Local File Inclusion (LFI) vulnerability affecting the Etude WordPress theme in versions 1.6 and earlier. The flaw allows remote attackers to include and execute arbitrary files on the underlying server without authentication. Patchstack tracks the issue under the Common Weakness Enumeration category [CWE-98], Improper Control of Filename for Include/Require Statement in PHP Program (PHP Remote File Inclusion).

The vulnerability impacts the confidentiality, integrity, and availability of affected WordPress installations. Attackers exploiting this flaw can read sensitive server files, leak configuration secrets, and potentially achieve code execution by including attacker-controlled content.

Critical Impact
Unauthenticated attackers can include arbitrary files via the Etude theme, exposing WordPress secrets and enabling potential remote code execution on vulnerable sites.

Affected Products

Etude WordPress theme versions through 1.6
WordPress sites using the Etude theme as the active or installed theme
Hosting environments running PHP with allow_url_include or unrestricted file access

Discovery Timeline

2026-06-17 - CVE-2025-69174 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-69174

Vulnerability Analysis

The Etude theme contains a PHP include or require statement that resolves a filename from attacker-controlled input without proper validation. Because the affected code path does not require authentication, any remote user can submit a crafted request to trigger inclusion of arbitrary files. The vulnerability is classified under [CWE-98], which covers improper control of filename in PHP include and require statements.

Exploitation impacts all three security pillars. Attackers can disclose source code and credentials by including files such as wp-config.php and system files like /etc/passwd. They can also tamper with site behavior by including log files or uploaded content that contains PHP payloads. The high attack complexity reflects the conditions required to reliably reach the vulnerable code path and chain to code execution.

Root Cause

The root cause is untrusted input flowing directly into a PHP file inclusion function. The theme does not validate, sanitize, or restrict the path against an allowlist of permitted files. PHP treats included files as code, so any file with PHP content is executed in the application context.

Attack Vector

The attack vector is network-based and requires no authentication or user interaction. An attacker sends an HTTP request to a vulnerable endpoint within the Etude theme and supplies a path parameter pointing to a target file. The server resolves the path and includes the file, returning its contents or executing embedded PHP code. See the Patchstack WordPress Vulnerability Report for additional technical detail.

// No verified exploit code is publicly available for CVE-2025-69174.
// Refer to the Patchstack advisory for technical specifics.

Detection Methods for CVE-2025-69174

Indicators of Compromise

Web server access logs containing path traversal sequences such as ../, ..%2f, or php://filter targeting Etude theme endpoints
Requests referencing sensitive files like wp-config.php, /etc/passwd, or /proc/self/environ in query parameters
Unexpected PHP errors mentioning include(), require(), or failed to open stream in theme files
Outbound connections from the web server to attacker infrastructure following suspicious inclusion requests

Detection Strategies

Inspect HTTP request parameters routed to /wp-content/themes/etude/ for filesystem path patterns
Correlate access logs with file integrity monitoring alerts on wp-config.php and other sensitive files
Apply web application firewall rules that flag LFI signatures such as php://, data://, and double-encoded traversal
Hunt for new or modified PHP files in wp-content/uploads/ that could serve as inclusion targets

Monitoring Recommendations

Forward WordPress, PHP-FPM, and web server logs to a centralized analytics platform for retention and querying
Alert on repeated 200 responses to theme URLs containing path parameters from a single source IP
Monitor PHP error logs for inclusion failures, which often indicate active probing
Track theme inventory across managed WordPress fleets to identify hosts running Etude <= 1.6

How to Mitigate CVE-2025-69174

Immediate Actions Required

Identify all WordPress installations using the Etude theme and inventory versions in production
Deactivate and remove the Etude theme on sites where a fixed version is not available
Restrict access to WordPress administrative and theme paths through web application firewall rules
Rotate WordPress secrets, database credentials, and API keys that may have been exposed through wp-config.php disclosure

Patch Information

No vendor patch information is published in the NVD record at the time of disclosure. Consult the Patchstack WordPress Vulnerability Report for the latest remediation guidance and any updated theme release.

Workarounds

Disable the Etude theme until a verified patched version is installed
Set allow_url_include = Off and allow_url_fopen = Off in php.ini to limit remote inclusion vectors
Apply open_basedir restrictions to confine PHP file access to the WordPress document root
Deploy WAF signatures that block LFI patterns targeting theme and plugin endpoints

bash

# Example php.ini hardening to reduce LFI impact
allow_url_include = Off
allow_url_fopen = Off
open_basedir = "/var/www/html:/tmp"
disable_functions = "exec,passthru,shell_exec,system,proc_open,popen"