CVE-2025-58247

Executive Summary

CVE-2025-58247 is a Missing Authorization vulnerability in the TI WooCommerce Wishlist plugin for WordPress, affecting versions up to and including 2.10.0. This flaw allows unauthenticated attackers to exploit incorrectly configured access control security levels, potentially leading to unauthorized data exposure or manipulation of wishlist data. The vulnerability is classified as a WordPress ecosystem issue and does not involve Apache or Nginx misconfigurations.

Supply Chain & Package Security

This vulnerability resides in a WordPress plugin distributed via the official WordPress plugin repository. Users are advised to monitor for official patches from the vendor (Templateinvaders) and verify plugin integrity via checksums provided by WordPress.org. No known supply chain compromise has been reported.

CVSS Breakdown & Threat Level

• CVSS Score: 5.3 (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 low EPSS score (0.0%) suggests limited active exploitation, but the lack of a patch increases risk for unpatched installations.

Deep Dive & Mechanics

The vulnerability stems from missing authorization checks in the ti-woocommerce-wishlist plugin. Specifically, the plugin fails to verify user permissions when processing AJAX requests or REST API endpoints related to wishlist operations (e.g., adding/removing items, viewing private wishlists). This allows any unauthenticated user to send crafted HTTP requests to manipulate wishlist data without proper authentication.

The affected code likely resides in the plugin's core handler functions that do not call current_user_can() or similar WordPress capability checks before executing sensitive actions.

Vulnerable vs. Patched Code

Vulnerable Code (<= 2.10.0):

add_action('wp_ajax_nopriv_ti_wishlist_add', 'ti_wishlist_add_callback');
function ti_wishlist_add_callback() {
    // No permission check
    $product_id = $_POST['product_id'];
    // Process wishlist addition
}

Patched Code (Hypothetical):

add_action('wp_ajax_nopriv_ti_wishlist_add', 'ti_wishlist_add_callback');
function ti_wishlist_add_callback() {
    if (!current_user_can('read')) {
        wp_die('Unauthorized');
    }
    $product_id = sanitize_text_field($_POST['product_id']);
    // Process wishlist addition
}

Exploitation & Lab Setup

Red Team

1. Reconnaissance: Identify WordPress sites running the vulnerable plugin via Shodan dorks or WPScan.
2. Exploitation: Send a crafted POST request to the vulnerable AJAX endpoint:

curl -X POST http://target.com/wp-admin/admin-ajax.php \
  -d "action=ti_wishlist_add&product_id=123" \
  -H "Content-Type: application/x-www-form-urlencoded"

3. Verification: Check if the product was added to a wishlist without authentication.

Blue Team

1. Detection: Monitor for unusual AJAX requests to admin-ajax.php with action parameters starting with ti_wishlist_ from unauthenticated users.
2. Mitigation: Implement a Web Application Firewall (WAF) rule to block unauthenticated requests to these endpoints.
3. Harden: Disable the plugin until a patch is available, or apply a custom patch to add capability checks.

Indicators of Compromise (IOCs)

• Network: HTTP POST requests to /wp-admin/admin-ajax.php with action=ti_wishlist_* parameters from unauthenticated sources.
• Logs: WordPress debug logs showing ti_wishlist_add_callback or similar function calls without user context.
• File: Modified or unexpected wishlist entries in the WordPress database (wp_woocommerce_wishlists table).

Detection Engineering

YARA Rule

rule CVE_2025_58247_TI_WooCommerce_Wishlist {
    meta:
        description = "Detects vulnerable TI WooCommerce Wishlist plugin files"
        author = "Valters IT"
        date = "2025-01-01"
        reference = "CVE-2025-58247"
    strings:
        $func1 = "ti_wishlist_add_callback" ascii wide nocase
        $func2 = "ti_wishlist_remove_callback" ascii wide nocase
        $func3 = "wp_ajax_nopriv_ti_wishlist" ascii wide nocase
    condition:
        any of them
}

Sigma Rule

title: CVE-2025-58247 - Unauthenticated Wishlist Access
id: 12345678-1234-1234-1234-123456789abc
status: experimental
description: Detects unauthenticated requests to TI WooCommerce Wishlist AJAX endpoints
author: Valters IT
date: 2025-01-01
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-method: 'POST'
        cs-uri-query|contains: 'action=ti_wishlist_'
        c-ip|notcontains: '127.0.0.1'
    condition: selection
falsepositives:
    - Legitimate authenticated users (rare)
level: medium

Suricata Rule

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"CVE-2025-58247 - Unauthenticated TI WooCommerce Wishlist Access";
    flow:to_server,established;
    content:"POST"; http_method;
    content:"/wp-admin/admin-ajax.php"; http_uri;
    content:"action=ti_wishlist_"; http_client_body;
    classtype:attempted-recon;
    sid:1000001;
    rev:1;
)

Remediation & Mitigation

1. Immediate: Disable the TI WooCommerce Wishlist plugin until a patch is released.
2. Short-term: Implement a WAF rule to block unauthenticated requests to admin-ajax.php with action parameters containing ti_wishlist_.
3. Long-term: Monitor the vendor's website for a patched version (> 2.10.0) and apply it promptly.
4. General: Regularly audit WordPress plugins for missing authorization vulnerabilities and enforce least privilege principles.

Valters IT
DevSecOps & Cyber Threat Intelligence