CVE-2023-51472
📋 TL;DR
This vulnerability allows unauthenticated attackers to bypass authentication mechanisms in the Checkout Mestres WP WordPress plugin, enabling them to escalate privileges and take over accounts. It affects all WordPress sites running vulnerable versions of this plugin. Attackers can gain administrative access without any credentials.
💻 Affected Systems
- Checkout Mestres WP 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 where attackers gain administrative access, install backdoors, steal sensitive data, deface the site, or use it for further attacks.
Likely Case
Unauthenticated attackers gain administrative privileges, allowing them to modify content, install malicious plugins/themes, or access sensitive user data.
If Mitigated
With proper network segmentation and monitoring, impact is limited to the affected WordPress instance, but the site remains compromised.
🎯 Exploit Status
Exploitation requires no authentication and minimal technical skill. Public proof-of-concept exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.1.9.8 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Checkout Mestres WP'. 4. Click 'Update Now' if available. 5. Alternatively, download version 7.1.9.8+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate checkout-mestres-wp
Restrict Access
allUse web application firewall to block requests to vulnerable plugin endpoints
🧯 If You Can't Patch
- Immediately disable the Checkout Mestres WP plugin
- Implement strict network access controls and monitor for suspicious admin account activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Checkout Mestres WP version. If version is 7.1.9.7 or earlier, you are vulnerable.Check Version:
wp plugin get checkout-mestres-wp --field=versionVerify Fix Applied:
Verify plugin version is 7.1.9.8 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated requests to plugin admin endpoints
- Sudden privilege escalation events
- New administrator accounts created
Network Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php with plugin-specific parameters
- Traffic from unexpected sources to admin endpoints
SIEM Query:
source="wordpress.log" AND ("checkout-mestres-wp" OR "mestres") AND (status=200 OR "admin") AND user="-"🔗 References
- https://patchstack.com/database/vulnerability/checkout-mestres-wp/wordpress-checkout-mestres-wp-plugin-7-1-9-6-unauthenticated-account-takeover-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/checkout-mestres-wp/wordpress-checkout-mestres-wp-plugin-7-1-9-6-unauthenticated-account-takeover-vulnerability?_s_id=cve
