CVE-2023-51498
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the WooCommerce Canada Post Shipping plugin for WordPress. It allows unauthorized users to access functionality that should require proper authentication, potentially affecting all WordPress sites using this plugin. The vulnerability exists in versions up to and including 2.8.3.
💻 Affected Systems
- WooCommerce Canada Post Shipping
⚠️ 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
Unauthorized users could modify shipping settings, access sensitive shipping data, or potentially escalate privileges to administrative functions within the plugin.
Likely Case
Unauthorized users could view or modify Canada Post shipping settings, potentially disrupting shipping calculations or accessing shipping-related customer data.
If Mitigated
With proper network segmentation and access controls, impact would be limited to the plugin's functionality without broader system compromise.
🎯 Exploit Status
Exploitation requires some understanding of WordPress plugin structure but is straightforward once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.8.4 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WooCommerce Canada Post Shipping'. 4. Click 'Update Now' if available, or download version 2.8.4+ from WordPress.org. 5. Activate the updated plugin.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate woocommerce-shipping-canada-post
Restrict Access
allUse web application firewall to block access to plugin endpoints
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access the WordPress admin interface
- Enable detailed logging and monitoring for unauthorized access attempts to plugin endpoints
🔍 How to Verify
Check if Vulnerable:
Check plugin version in WordPress admin under Plugins > Installed PluginsCheck Version:
wp plugin get woocommerce-shipping-canada-post --field=versionVerify Fix Applied:
Verify plugin version is 2.8.4 or higher and test authorization controls📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /wp-content/plugins/woocommerce-shipping-canada-post/ endpoints
- Unusual POST requests to plugin admin functions from non-admin users
Network Indicators:
- HTTP requests to Canada Post plugin endpoints from unauthorized IPs
- Unusual traffic patterns to /wp-admin/admin-ajax.php with plugin-specific actions
SIEM Query:
source="wordpress.log" AND ("woocommerce-shipping-canada-post" OR "canada_post") AND (status=403 OR user_role!="administrator")🔗 References
- https://patchstack.com/database/vulnerability/woocommerce-shipping-canada-post/wordpress-woocommerce-canada-post-shipping-plugin-2-8-3-broken-access-control-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/woocommerce-shipping-canada-post/wordpress-woocommerce-canada-post-shipping-plugin-2-8-3-broken-access-control-vulnerability?_s_id=cve
