CVE-2024-33956
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Custom WooCommerce Checkout Fields Editor WordPress plugin. It allows unauthorized users to access functionality that should be restricted, potentially modifying checkout fields or settings. All WordPress sites using affected versions of this plugin are vulnerable.
💻 Affected Systems
- Custom WooCommerce Checkout Fields Editor WordPress plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify checkout fields to steal customer data, inject malicious code, or disrupt the checkout process entirely.
Likely Case
Unauthorized users could view or modify checkout field configurations, potentially causing checkout form issues or exposing field data.
If Mitigated
With proper access controls, only authorized administrators can manage checkout fields, maintaining normal functionality.
🎯 Exploit Status
Exploitation requires some level of access but not proper authorization. The vulnerability is in access control mechanisms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Custom WooCommerce Checkout Fields Editor'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.3.1+ from WordPress.org and replace the plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate add-fields-to-checkout-page-woocommerce
Restrict Admin Access
linuxLimit WordPress admin access to trusted IP addresses only
# Add to .htaccess for Apache:
Order deny,allow
Deny from all
Allow from 192.168.1.0/24
# Add to nginx config:
location /wp-admin {
allow 192.168.1.0/24;
deny all;
}
🧯 If You Can't Patch
- Remove the plugin entirely and use alternative checkout field solutions
- Implement strict access controls and monitor admin activity logs
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for 'Custom WooCommerce Checkout Fields Editor' version 1.3.0 or earlierCheck Version:
wp plugin get add-fields-to-checkout-page-woocommerce --field=versionVerify Fix Applied:
Verify plugin version is 1.3.1 or later in WordPress admin plugins page📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to plugin admin endpoints
- Unexpected modifications to checkout field settings
Network Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php or plugin-specific endpoints
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "checkout-fields") AND (user_agent NOT IN allowed_admin_agents OR src_ip NOT IN admin_ip_range)🔗 References
- https://patchstack.com/database/vulnerability/add-fields-to-checkout-page-woocommerce/wordpress-custom-woocommerce-checkout-fields-editor-plugin-1-3-0-broken-access-control-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/add-fields-to-checkout-page-woocommerce/wordpress-custom-woocommerce-checkout-fields-editor-plugin-1-3-0-broken-access-control-vulnerability?_s_id=cve
