CVE-2025-4187
📋 TL;DR
This vulnerability allows unauthenticated attackers to perform directory traversal attacks via the userpro_fbconnect() function in the UserPro WordPress plugin. Attackers can read arbitrary files on the server, potentially exposing sensitive configuration files, credentials, or other confidential data. All WordPress sites using UserPro plugin versions up to 5.1.10 are affected.
💻 Affected Systems
- UserPro - Community and User Profile 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 obtain database credentials, SSH keys, or other sensitive system files leading to full server compromise, data theft, or lateral movement within the network.
Likely Case
Attackers read WordPress configuration files (wp-config.php) containing database credentials, potentially leading to database access and site takeover.
If Mitigated
With proper file permissions and web server restrictions, attackers can only read publicly accessible files with minimal impact.
🎯 Exploit Status
The vulnerability requires no authentication and has simple exploitation via crafted HTTP requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.1.11 or later
Vendor Advisory: https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find UserPro plugin. 4. Click 'Update Now' if update is available. 5. If no update appears, manually download version 5.1.11+ from CodeCanyon and replace plugin files.
🔧 Temporary Workarounds
Disable vulnerable function via .htaccess
allBlock access to the vulnerable userpro_fbconnect() function using web server restrictions
# Add to .htaccess in WordPress root directory
<FilesMatch "userpro_fbconnect">
Order Allow,Deny
Deny from all
</FilesMatch>
Temporarily disable plugin
linuxDeactivate the UserPro plugin until patched
wp plugin deactivate userpro
🧯 If You Can't Patch
- Implement strict file permissions (config files should be 600, web directories 755)
- Deploy web application firewall (WAF) rules to block directory traversal patterns
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → UserPro version number. If version is 5.1.10 or lower, you are vulnerable.Check Version:
wp plugin get userpro --field=versionVerify Fix Applied:
After updating, verify plugin version shows 5.1.11 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '../' or '..\' patterns to /wp-content/plugins/userpro/
- Multiple 200 OK responses to unusual file paths from single IP
Network Indicators:
- Unusual GET requests attempting to access /etc/passwd, wp-config.php, or other sensitive files via plugin endpoints
SIEM Query:
source="web_logs" AND (uri="*userpro_fbconnect*" AND (uri="*../*" OR uri="*..\\*"))