CVE-2024-37456
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Noptin Newsletter WordPress plugin that allows attackers to access functionality not properly constrained by access control lists. Attackers can perform actions intended only for authorized users. This affects all WordPress sites running Noptin Newsletter plugin versions up to and including 3.4.2.
💻 Affected Systems
- Noptin Newsletter 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 manipulate newsletter settings, access subscriber data, modify email templates, or potentially escalate privileges within the WordPress environment.
Likely Case
Unauthorized users accessing newsletter management functions, potentially modifying subscription settings or accessing subscriber information.
If Mitigated
Proper access controls would prevent unauthorized users from accessing administrative functions, limiting impact to authorized users only.
🎯 Exploit Status
Exploitation requires some level of access to the WordPress site, but specific authorization checks are missing for certain functions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.4.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Noptin Newsletter plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 3.4.3+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the Noptin Newsletter plugin until patched
wp plugin deactivate newsletter-optin-box
Access Restriction via .htaccess
linuxRestrict access to Noptin admin endpoints
# Add to .htaccess in WordPress root:
<FilesMatch "noptin.*">
Order Deny,Allow
Deny from all
</FilesMatch>
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access WordPress admin interface
- Enable WordPress security plugins that monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Noptin Newsletter. If version is 3.4.2 or lower, you are vulnerable.Check Version:
wp plugin get newsletter-optin-box --field=versionVerify Fix Applied:
Verify Noptin Newsletter plugin version is 3.4.3 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /wp-admin/admin.php?page=noptin-* endpoints
- Unexpected modifications to newsletter settings or subscriber data
Network Indicators:
- Unusual traffic patterns to Noptin admin endpoints from unauthorized IPs
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin.php" AND uri_query="page=noptin*") AND user_role!="administrator"