CVE-2023-49817
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Flexible Woocommerce Checkout Field Editor WordPress plugin that allows attackers to bypass access controls. Attackers can exploit incorrectly configured security levels to perform unauthorized actions. All WordPress sites using affected versions of this plugin are vulnerable.
💻 Affected Systems
- Flexible Woocommerce Checkout Field 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
Complete site compromise through privilege escalation, data theft, or unauthorized administrative actions
Likely Case
Unauthorized modification of checkout fields, user data exposure, or limited privilege escalation
If Mitigated
No impact with proper access controls and authorization checks in place
🎯 Exploit Status
Exploitation requires some level of access but authorization bypass makes it relatively simple
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'Flexible Woocommerce Checkout Field Editor'
4. Click 'Update Now' if update available
5. If no update available, deactivate and delete plugin, then install fresh version 2.0.2+
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched version is available
wp plugin deactivate flexible-woocommerce-checkout-field-editor
Access Restriction via .htaccess
linuxRestrict access to plugin files via web server configuration
# Add to .htaccess:
<Files "flexible-woocommerce-checkout-field-editor/*">
Order Deny,Allow
Deny from all
</Files>
🧯 If You Can't Patch
- Deactivate and remove the Flexible Woocommerce Checkout Field Editor plugin entirely
- Implement strict network segmentation and firewall rules to limit access to WordPress admin interface
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Flexible Woocommerce Checkout Field Editor versionCheck Version:
wp plugin get flexible-woocommerce-checkout-field-editor --field=versionVerify Fix Applied:
Verify plugin version is 2.0.2 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to plugin admin endpoints
- Unusual user role changes
- Suspicious checkout field modifications
Network Indicators:
- HTTP requests to /wp-admin/admin.php?page=flexible_checkout_fields with unauthorized users
SIEM Query:
source="wordpress.log" AND ("flexible_checkout_fields" OR "flexible-woocommerce-checkout-field-editor") AND (status=403 OR user_role!="administrator")