CVE-2022-1614
📋 TL;DR
This vulnerability in the WP-EMail WordPress plugin allows attackers to bypass IP-based anti-spam restrictions by spoofing their IP address using HTTP headers. It affects WordPress sites using WP-EMail plugin versions before 2.69.0. Attackers can send spam emails through the contact form despite IP blocking measures.
💻 Affected Systems
- WP-EMail WordPress Plugin
📦 What is this software?
Wp Email by Wp Email Project
⚠️ Risk & Real-World Impact
Worst Case
Complete bypass of IP-based spam protection leading to successful spam campaigns, potential email flooding, and abuse of contact forms for phishing or malware distribution.
Likely Case
Spammers bypass IP blocking to send unwanted emails through contact forms, potentially overwhelming site administrators and damaging site reputation.
If Mitigated
Limited impact with proper monitoring and additional spam filtering layers in place.
🎯 Exploit Status
Exploitation requires sending specially crafted HTTP headers (X-Forwarded-For, Client-IP, etc.) to spoof IP addresses.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.69.0
Vendor Advisory: https://wpscan.com/vulnerability/a5940d0b-6b88-4418-87e2-02c0897bc2f1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find WP-EMail plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 2.69.0+ from WordPress repository.
🔧 Temporary Workarounds
Disable WP-EMail Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wp-email
Web Application Firewall Rule
allBlock or sanitize X-Forwarded-For and similar headers at WAF level
🧯 If You Can't Patch
- Implement additional spam filtering at email server level
- Monitor contact form submissions for suspicious patterns and implement rate limiting
🔍 How to Verify
Check if Vulnerable:
Check WP-EMail plugin version in WordPress admin panel under Plugins > Installed PluginsCheck Version:
wp plugin get wp-email --field=versionVerify Fix Applied:
Verify plugin version is 2.69.0 or higher and test contact form with spoofed headers📡 Detection & Monitoring
Log Indicators:
- Unusual IP addresses in contact form submissions
- Spike in email submissions from single source
Network Indicators:
- HTTP requests with X-Forwarded-For headers to contact form endpoints
SIEM Query:
source="wordpress" AND (uri_path="/wp-content/plugins/wp-email/" OR plugin="wp-email") AND http_header="X-Forwarded-For"