CVE-2025-66109
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Cart Weight for WooCommerce plugin that allows attackers to bypass access controls. It affects WordPress sites using this plugin, potentially allowing unauthorized users to access restricted functionality. The vulnerability exists in versions up to and including 1.9.11.
💻 Affected Systems
- Cart Weight for WooCommerce (octolize)
⚠️ 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 cart weight calculations, manipulate shipping costs, or access administrative functions they shouldn't have access to, potentially leading to financial loss or data exposure.
Likely Case
Unauthorized users could view or modify cart weight settings, potentially affecting shipping calculations and pricing for customers.
If Mitigated
With proper access controls and authentication checks, only authorized administrators can access cart weight functionality.
🎯 Exploit Status
Exploitation requires some level of access to the WordPress site but bypasses authorization checks for specific functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: >1.9.11
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'Cart Weight for WooCommerce'
4. Click 'Update Now' if available
5. Alternatively, download latest version from WordPress repository
6. Deactivate and delete old version, then install new version
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate woo-cart-weight
Restrict Access via .htaccess
linuxAdd access restrictions to plugin directory
Order deny,allow
Deny from all
🧯 If You Can't Patch
- Implement additional authentication middleware to verify user permissions before allowing access to cart weight functionality
- Monitor access logs for unauthorized attempts to access cart weight endpoints and implement WAF rules to block suspicious requests
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Cart Weight for WooCommerce version numberCheck Version:
wp plugin get woo-cart-weight --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.9.11 and test that only authorized users can access cart weight functionality📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to cart weight endpoints
- Multiple failed authentication attempts followed by successful access to restricted functions
Network Indicators:
- HTTP requests to cart weight API endpoints from unauthorized IPs
- Unusual patterns in shipping calculation requests
SIEM Query:
source="wordpress.log" AND ("cart-weight" OR "woo-cart-weight") AND (status=200 OR status=302) AND user_role!="administrator"