CVE-2025-66525
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Elastic Email Sender WordPress plugin that allows attackers to bypass access controls. It affects WordPress sites using the plugin version 1.2.20 or earlier, potentially enabling unauthorized access to functionality.
💻 Affected Systems
- Elastic Email Sender 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 email sending functionality, access sensitive email data, or modify plugin settings to compromise email communications.
Likely Case
Unauthorized users could access administrative features of the plugin, potentially sending emails or viewing configuration data they shouldn't have access to.
If Mitigated
With proper access controls and authentication mechanisms in place, the vulnerability would be prevented from being exploited.
🎯 Exploit Status
Exploitation requires some level of access to the WordPress site but bypasses authorization checks within the plugin.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.21 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Elastic Email Sender plugin. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the Elastic Email Sender plugin until patched
wp plugin deactivate elastic-email-sender
Restrict Access
linuxImplement IP-based restrictions to limit access to WordPress admin area
Add to .htaccess: Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the WordPress instance
- Deploy a web application firewall (WAF) with rules to detect and block unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Elastic Email Sender > Version numberCheck Version:
wp plugin get elastic-email-sender --field=versionVerify Fix Applied:
Verify plugin version is 1.2.21 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to plugin endpoints
- Unusual email sending patterns from WordPress
Network Indicators:
- HTTP requests to /wp-admin/admin-ajax.php with elastic-email-sender actions from unauthorized IPs
SIEM Query:
source="wordpress.log" AND ("elastic-email-sender" OR "elastic_email") AND ("unauthorized" OR "403" OR "admin-ajax.php")