CVE-2025-66115
📋 TL;DR
This vulnerability allows attackers to include local files on the server through improper filename control in PHP include/require statements. It affects WordPress Easy Invoice plugin installations running vulnerable versions, potentially leading to sensitive information disclosure or code execution.
💻 Affected Systems
- WordPress Easy Invoice 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
Full server compromise through local file inclusion leading to remote code execution, sensitive file disclosure (config files, passwords), and complete system takeover.
Likely Case
Sensitive information disclosure including database credentials, configuration files, and user data through reading local files.
If Mitigated
Limited impact with proper file permissions, web server restrictions, and security controls preventing file inclusion outside web root.
🎯 Exploit Status
Local file inclusion vulnerabilities are commonly exploited and weaponized. The vulnerability is unauthenticated and requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.1.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Easy Invoice plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 2.1.5+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Easy Invoice plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate easy-invoice
Restrict file inclusion paths
linuxConfigure PHP to restrict file inclusion to specific directories
Add 'open_basedir = /var/www/html' to php.ini
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block file inclusion patterns
- Restrict file permissions on sensitive configuration files and directories
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Easy Invoice version. If version is 2.1.4 or lower, system is vulnerable.Check Version:
wp plugin get easy-invoice --field=versionVerify Fix Applied:
Verify Easy Invoice plugin version is 2.1.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in web server logs
- Requests containing '../' sequences or file inclusion parameters
- Access to sensitive files like /etc/passwd, wp-config.php
Network Indicators:
- HTTP requests with file inclusion parameters (include, require, file parameters)
- Unusual file paths in URL parameters
SIEM Query:
web.url:*../* AND (web.url:*include* OR web.url:*require* OR web.url:*file*)