CVE-2025-69409

Executive Summary

CVE-2025-69409 is a critical PHP Local File Inclusion (LFI) vulnerability discovered in the WordPress theme "PJ | Life & Business Coaching" by Axiomthemes, affecting versions up to and including 3.0.0. The vulnerability stems from improper control of filenames used in PHP include/require statements, allowing an unauthenticated attacker to read arbitrary files from the server's filesystem. This can lead to exposure of sensitive configuration files, database credentials, and source code. The CVSS score of 8.1 (High) reflects the ease of exploitation and high confidentiality impact. As of this report, no official patch has been released, and no public proof-of-concept (PoC) code is available, but the vulnerability is trivially exploitable via crafted HTTP requests.

Supply Chain & Package Security

This vulnerability affects a WordPress theme distributed via the Axiomthemes marketplace and potentially bundled with other products. Users who have installed this theme from official or third-party sources are at risk. The lack of a patch means that supply chain security is compromised; users must manually apply mitigations or remove the theme until a fix is provided.

CVSS Breakdown & Threat Level

• CVSS Score: 8.1 (High)
• Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
• Attack Vector: Network (AV:N) – Exploitable remotely.
• Attack Complexity: Low (AC:L) – No special conditions required.
• Privileges Required: None (PR:N) – No authentication needed.
• User Interaction: None (UI:N) – No user action required.
• Scope: Unchanged (S:U) – Vulnerability affects only the vulnerable component.
• Confidentiality Impact: High (C:H) – Full file read capability.
• Integrity Impact: None (I:N) – No file modification possible.
• Availability Impact: None (A:N) – No denial of service.

Threat Level: High. The vulnerability is easy to exploit and can lead to complete disclosure of sensitive server data.

Deep Dive & Mechanics

The vulnerability is a PHP Local File Inclusion (LFI) in the WordPress theme's code. The theme likely uses a function like include() or require() with a user-controllable parameter (e.g., page, template, or file) without proper sanitization. An attacker can manipulate this parameter to include arbitrary files from the server, such as /etc/passwd, wp-config.php, or other sensitive files.

Root Cause: The theme fails to validate or sanitize the filename before passing it to a PHP include/require statement. This allows path traversal sequences (e.g., ../../) to escape the intended directory.

Example vulnerable code pattern:

$page = $_GET['page'];
include("pages/" . $page . ".php");

An attacker can request ?page=../../../../etc/passwd%00 to include the password file (null byte injection may be needed in older PHP versions).

Vulnerable vs. Patched Code

Since no patch is available, we can only describe the vulnerable pattern and a hypothetical fix.

Vulnerable Code (hypothetical):

<?php
$template = $_GET['template'];
include("templates/" . $template . ".php");
?>

Patched Code (hypothetical):

<?php
$allowed_templates = array('home', 'about', 'contact');
$template = $_GET['template'];
if (in_array($template, $allowed_templates)) {
    include("templates/" . $template . ".php");
} else {
    // Handle error
}
?>

The patched version uses a whitelist of allowed templates, preventing arbitrary file inclusion.

Exploitation & Lab Setup

Red Team (Attacker)

Lab Setup:

1. Install a WordPress instance with the vulnerable theme (PJ | Life & Business Coaching <= 3.0.0).
2. Ensure the server is accessible over the network.

Exploitation Steps:

1. Identify the vulnerable parameter (e.g., page, template, file). Common locations: URL query strings, POST parameters, or cookie values.
2. Craft a request to include a sensitive file:

   GET /?page=../../../../etc/passwd HTTP/1.1
   Host: target.com
   

3. If the server returns the contents of /etc/passwd, the vulnerability is confirmed.
4. For WordPress, target wp-config.php to extract database credentials:

   GET /?page=../../../../wp-config.php HTTP/1.1
   

Note: No public exploit code is available, but the technique is standard LFI.

Blue Team (Defender)

Detection:

• Monitor for path traversal patterns in HTTP requests (e.g., ../, ..\\, %2e%2e%2f).
• Look for requests to the theme's template files with suspicious parameters.
• Use WAF rules to block LFI attempts.

Mitigation:

• Disable the vulnerable theme immediately.
• Apply virtual patching via WAF (e.g., ModSecurity rules).
• Restrict file inclusion to a whitelist of allowed files.

Indicators of Compromise (IOCs)

• Network IOCs:

  • HTTP requests containing ../ or ..\\ in parameters like page, template, file.
  • Requests to /wp-content/themes/pj-life-business-coaching/ with suspicious query strings.
  • Outbound connections from the server to attacker-controlled hosts (if RCE is achieved via log poisoning).

• File System IOCs:

  • Unexpected access to /etc/passwd, /etc/shadow, wp-config.php, or other sensitive files.
  • Presence of webshells in the web root (if LFI leads to RCE).

• Log IOCs:

  • Web server logs showing 404 errors for non-existent files after path traversal attempts.
  • PHP error logs with "include()" or "require()" failures.

Detection Engineering

YARA Rule

rule CVE_2025_69409_LFI_WordPress_Theme {
    meta:
        description = "Detects LFI attempts targeting PJ | Life & Business Coaching theme"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-69409"
    strings:
        $path_traversal = /(\.\.\/|\.\.\\){2,}/
        $theme_path = /wp-content\/themes\/pj-life-business-coaching/i
        $sensitive_file = /(etc\/passwd|wp-config\.php|\.env|config\.php)/i
    condition:
        $theme_path and $path_traversal and $sensitive_file
}

Sigma Rule

title: CVE-2025-69409 LFI Attempt on PJ Theme
id: 7a8b9c0d-1e2f-3a4b-5c6d-7e8f9a0b1c2d
status: experimental
description: Detects HTTP requests with path traversal patterns targeting the vulnerable WordPress theme
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-uri-query|contains:
            - '../'
            - '..\\'
            - '%2e%2e%2f'
        cs-uri-stem|contains: '/wp-content/themes/pj-life-business-coaching/'
    condition: selection
falsepositives:
    - Legitimate use of relative paths in theme files (rare)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-69409 LFI Attempt on PJ Theme"; flow:to_server,established; content:"/wp-content/themes/pj-life-business-coaching/"; http_uri; content:"../"; http_uri; distance:0; within:100; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the theme: Switch to a different WordPress theme immediately.
2. Remove the theme: Delete the theme files from /wp-content/themes/pj-life-business-coaching/.
3. Apply WAF rules: Block requests containing path traversal patterns (e.g., ../, ..\\, %2e%2e%2f).

Long-term Fix:

• Wait for an official patch from Axiomthemes. If none is provided, consider migrating to a supported theme.
• Implement input validation and whitelisting for all file inclusion parameters in custom code.

Detection:

• Enable detailed logging for web servers and monitor for LFI attempts.
• Use the provided YARA, Sigma, and Suricata rules to detect exploitation attempts.

Valters IT
Securing Digital Frontiers