CVE-2023-41133
📋 TL;DR
This vulnerability allows attackers to bypass IP-based authentication in the Secure Admin IP WordPress plugin by spoofing their IP address. Attackers can gain unauthorized access to admin functionality that should be restricted to specific IP addresses. This affects all WordPress sites using Secure Admin IP plugin versions up to 2.0.
💻 Affected Systems
- Secure Admin IP 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 compromise of WordPress admin panel, allowing attackers to modify site content, install malicious plugins/themes, or take over the entire site.
Likely Case
Unauthorized access to admin features, potentially leading to content manipulation, user privilege escalation, or data exposure.
If Mitigated
Limited impact if additional authentication layers exist, but still exposes admin functionality to unauthorized users.
🎯 Exploit Status
Exploitation involves IP header manipulation which is trivial with common tools like curl or browser extensions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.1
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/secure-admin-ip/vulnerability/wordpress-secure-admin-ip-plugin-2-0-ip-spoofing-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Secure Admin IP and click 'Update Now'. 4. Verify version is 2.0.1 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the Secure Admin IP plugin until patched
wp plugin deactivate secure-admin-ip
Implement Web Application Firewall
allConfigure WAF to block IP spoofing attempts and suspicious admin access
🧯 If You Can't Patch
- Implement additional authentication factors (2FA) for admin access
- Restrict admin access using network-level controls (firewall rules, VPN)
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Secure Admin IP version 2.0 or lowerCheck Version:
wp plugin get secure-admin-ip --field=versionVerify Fix Applied:
Verify plugin version is 2.0.1 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Admin access from unexpected IP addresses
- Multiple failed admin login attempts from different IPs
- X-Forwarded-For or similar headers in admin access logs
Network Indicators:
- HTTP requests with spoofed IP headers to wp-admin URLs
- Unusual admin panel access patterns
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/*" OR uri_path="/wp-login.php") AND (http_x_forwarded_for EXISTS OR client_ip NOT IN allowed_ips)