CVE-2025-62129

Executive Summary

CVE-2025-62129 is a Missing Authorization vulnerability in the RestroPress WordPress plugin by Magnigenie, affecting versions up to and including 3.2.7. This flaw allows an unauthenticated attacker to exploit incorrectly configured access control security levels, potentially leading to unauthorized data access or privilege escalation. The vulnerability is classified as WordPress ecosystem issue and does not involve Apache or Nginx misconfigurations.

The vulnerability has a CVSS score of 5.3 (Medium) and an EPSS score of 0.0%, indicating low exploitation probability in the wild. However, due to the lack of a vendor patch, this remains a significant risk for sites running the affected plugin.

Supply Chain & Package Security

RestroPress is a WordPress plugin distributed via the official WordPress plugin repository and third-party marketplaces. The vulnerability exists in the plugin’s core authorization logic, not in any upstream package manager (NPM, PyPI, Go, Ruby). Therefore, supply chain risks are limited to the plugin’s own codebase and any custom extensions that rely on its authorization hooks.

CVSS Breakdown & Threat Level

• Attack Vector (AV): Network (N) – Exploitable remotely.
• Attack Complexity (AC): Low (L) – No special conditions required.
• Privileges Required (PR): None (N) – No authentication needed.
• User Interaction (UI): None (N) – No user action required.
• Scope (S): Unchanged (U) – Exploit does not affect other components.
• Confidentiality (C): Low (L) – Limited data exposure.
• Integrity (I): None (N) – No data modification.
• Availability (A): None (N) – No denial of service.

Threat Level: Medium – Exploitation is straightforward but impact is limited to unauthorized access to non-critical data.

Deep Dive & Mechanics

The vulnerability resides in the RestroPress plugin’s REST API endpoints or AJAX handlers that fail to enforce proper capability checks. Specifically, functions intended for authenticated users (e.g., restaurant managers) are accessible to unauthenticated visitors due to missing current_user_can() or wp_verify_nonce() calls.

Root Cause: The plugin uses wp_ajax_nopriv_* hooks without verifying user roles, or exposes endpoints via register_rest_route() without permission_callback validation.

Attack Vector: An attacker sends crafted HTTP requests to vulnerable endpoints (e.g., /wp-json/restropress/v1/orders, /wp-admin/admin-ajax.php?action=restropress_get_data) to retrieve sensitive information such as order details, customer data, or configuration settings.

Impact: Unauthorized disclosure of business data, potential enumeration of valid users, and in some cases, ability to modify plugin settings if the missing authorization affects write operations.

Vulnerable vs. Patched Code

Vulnerable Code (<= 3.2.7):

// Example: Missing permission_callback in REST route
register_rest_route('restropress/v1', '/orders', array(
    'methods' => 'GET',
    'callback' => 'restropress_get_orders',
    // No 'permission_callback' defined
));

Patched Code (Hypothetical):

register_rest_route('restropress/v1', '/orders', array(
    'methods' => 'GET',
    'callback' => 'restropress_get_orders',
    'permission_callback' => function() {
        return current_user_can('manage_options');
    }
));

AJAX Handler Vulnerable:

add_action('wp_ajax_nopriv_restropress_get_data', 'restropress_get_data');
// Missing capability check inside the function
function restropress_get_data() {
    // No current_user_can() check
    $data = get_option('restropress_settings');
    wp_send_json($data);
}

Patched AJAX:

add_action('wp_ajax_restropress_get_data', 'restropress_get_data');
// Remove nopriv hook or add capability check
function restropress_get_data() {
    if (!current_user_can('manage_options')) {
        wp_die('Unauthorized');
    }
    $data = get_option('restropress_settings');
    wp_send_json($data);
}

Exploitation & Lab Setup

Red Team

Prerequisites:

• Target WordPress site with RestroPress <= 3.2.7 installed and active.
• Network access to the site.

Exploitation Steps:

1. Identify vulnerable endpoints by scanning for common RestroPress AJAX actions or REST routes.
2. Send a GET request to a vulnerable endpoint without authentication:

   curl -X GET "http://target.com/wp-json/restropress/v1/orders"
   

3. If the endpoint returns data (e.g., order list), the vulnerability is confirmed.
4. For AJAX endpoints:

   curl -X POST "http://target.com/wp-admin/admin-ajax.php" \
        --data "action=restropress_get_data"
   

5. Extract sensitive information from the response.

Lab Setup:

• Use a local WordPress installation with Docker:

  docker run --name wp -e WORDPRESS_DB_HOST=db -e WORDPRESS_DB_USER=wp -e WORDPRESS_DB_PASSWORD=wp -e WORDPRESS_DB_NAME=wp -p 8080:80 -d wordpress
  

• Install RestroPress 3.2.7 manually via plugin upload.
• Create a test endpoint to simulate the vulnerability.

Blue Team

Detection:

• Monitor for unusual access to /wp-json/restropress/v1/* or admin-ajax.php with action=restropress_* from unauthenticated IPs.
• Look for repeated requests to these endpoints without a valid nonce or session cookie.

Hunting:

• Search logs for restropress in request URIs combined with HTTP 200 responses for unauthenticated users.
• Use the Sigma rule below to detect exploitation attempts.

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP requests to /wp-json/restropress/v1/orders, /wp-json/restropress/v1/settings, etc.
  • POST requests to /wp-admin/admin-ajax.php with action=restropress_* parameters.
• File IOCs:
  • Modified plugin files in /wp-content/plugins/restropress/ (if attacker uploads backdoor).
• Log IOCs:
  • Repeated 200 responses for unauthenticated users accessing plugin REST endpoints.
  • Unusual user agent strings or IPs from known scanning services.

Detection Engineering

YARA Rule

rule Detect_RestroPress_Missing_Auth {
    meta:
        description = "Detects exploitation attempts for CVE-2025-62129 in RestroPress"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-62129"
    strings:
        $rest_route = "/wp-json/restropress/v1/" ascii wide nocase
        $ajax_action = "action=restropress_" ascii wide nocase
        $unauth_access = "HTTP/1.1 200 OK" ascii wide
    condition:
        any of ($rest_route, $ajax_action) and $unauth_access
}

Sigma Rule

title: CVE-2025-62129 RestroPress Missing Authorization Exploitation
id: 7a8b9c0d-1e2f-3a4b-5c6d-7e8f9a0b1c2d
status: experimental
description: Detects unauthenticated access to RestroPress REST API or AJAX endpoints
author: Valters IT
date: 2025/04/10
logsource:
    category: webserver
    product: apache
    service: access_combined
detection:
    selection:
        cs-uri-query|contains:
            - '/wp-json/restropress/v1/'
            - 'action=restropress_'
        sc-status: 200
    condition: selection
falsepositives:
    - Legitimate authenticated users (check for session cookies)
level: medium

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-62129 RestroPress Missing Authorization Exploit"; flow:to_server,established; content:"/wp-json/restropress/v1/"; http_uri; nocase; content:"!Authorization"; http_header; nocase; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the plugin if not critical to business operations.
2. Apply virtual patching using a WAF (e.g., ModSecurity) to block unauthenticated requests to /wp-json/restropress/v1/* and admin-ajax.php?action=restropress_*.
3. Restrict access to these endpoints via .htaccess:

   <IfModule mod_rewrite.c>
       RewriteEngine On
       RewriteCond %{REQUEST_URI} ^/wp-json/restropress/v1/ [OR]
       RewriteCond %{QUERY_STRING} action=restropress_
       RewriteCond %{HTTP_COOKIE} !wordpress_logged_in
       RewriteRule ^ - [F]
   </IfModule>
   

Long-term Fix:

• Contact Magnigenie for an official patch or consider migrating to an alternative plugin.
• Implement proper capability checks in custom code if you maintain a fork.

Detection:

• Deploy the YARA, Sigma, and Suricata rules above to monitor for exploitation attempts.

Valters IT
Senior DevSecOps & Cyber Threat Intelligence Analyst
Report generated for CVE-2025-62129