CVE-2024-25925 – This vulnerability allows unauthenticated attac... (How to Fix)

Q: What is the severity of CVE-2024-25925?

CVE-2024-25925 has a CVSS score of 10.0 (CRITICAL). This vulnerability allows unauthenticated attackers to upload arbitrary files to WordPress sites running the vulnerable WooCommerce Easy Checkout Field Editor plugin. Attackers can upload malicious files like PHP shells to gain remote code execution. All WordPress sites using this plugin version 3.5.12 or earlier are affected.

📋 TL;DR

This vulnerability allows unauthenticated attackers to upload arbitrary files to WordPress sites running the vulnerable WooCommerce Easy Checkout Field Editor plugin. Attackers can upload malicious files like PHP shells to gain remote code execution. All WordPress sites using this plugin version 3.5.12 or earlier are affected.

💻 Affected Systems

Products:

SYSBASICS WooCommerce Easy Checkout Field Editor, Fees & Discounts

Versions: n/a through 3.5.12

Operating Systems: All operating systems running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Affects all WordPress installations with the vulnerable plugin enabled, regardless of WooCommerce configuration.

📦 What is this software?

Easy Checkout Field Editor by Sysbasics

View all CVEs affecting Easy Checkout Field Editor →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete server compromise leading to data theft, ransomware deployment, or website defacement through remote code execution.

🟠

Likely Case

Attackers upload web shells to gain persistent access, install malware, or pivot to internal networks.

🟢

If Mitigated

File uploads blocked or sanitized, limiting impact to denial of service or temporary disruption.

🌐 Internet-Facing: HIGH - WordPress sites are typically internet-facing and the exploit requires no authentication.

🏢 Internal Only: LOW - The vulnerability affects internet-facing web applications, not internal systems directly.

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: CONFIRMED

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation is trivial with publicly available proof-of-concept code. No authentication required.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.5.13 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/phppoet-checkout-fields/wordpress-woocommerce-easy-checkout-field-editor-fees-discounts-plugin-3-5-12-unauthenticated-arbitrary-file-upload-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'WooCommerce Easy Checkout Field Editor, Fees & Discounts'. 4. Click 'Update Now' if available, or manually update to version 3.5.13+. 5. Verify the plugin is updated to 3.5.13 or later.

🔧 Temporary Workarounds

Disable vulnerable plugin

linux

Temporarily disable the plugin until patched

wp plugin deactivate phppoet-checkout-fields

Block file upload endpoints

all

Use web application firewall to block requests to vulnerable endpoints

# WAF rule to block /wp-content/plugins/phppoet-checkout-fields/ upload requests

🧯 If You Can't Patch

Disable the plugin immediately and remove it from the WordPress installation
Implement strict file upload restrictions at the web server level (e.g., .htaccess rules blocking PHP execution in upload directories)

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → WooCommerce Easy Checkout Field Editor version. If version is 3.5.12 or earlier, you are vulnerable.

Check Version:

wp plugin get phppoet-checkout-fields --field=version

Verify Fix Applied:

Verify plugin version is 3.5.13 or later in WordPress admin panel. Test file upload functionality to ensure only allowed file types are accepted.

📡 Detection & Monitoring

Log Indicators:

POST requests to /wp-content/plugins/phppoet-checkout-fields/ with file upload parameters
Unexpected .php files in upload directories
Web server errors related to file upload restrictions

Network Indicators:

Unusual file upload traffic to WordPress plugin endpoints
POST requests with executable file extensions

SIEM Query:

source="web_logs" AND uri="/wp-content/plugins/phppoet-checkout-fields/" AND method="POST" AND (file_extension="php" OR file_extension="phtml" OR file_extension="phar")

📊 Metadata

CVE ID: CVE-2024-25925

CVSS v3 Score: 10.0 (CRITICAL)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE: CWE-434

Published: February 26, 2024

Last Updated: May 8, 2025

🔗 References

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