CVE-2025-14836
📋 TL;DR
This vulnerability in ZZCMS 2025 allows attackers to store user data in cleartext on disk through the /reg/user_save.php file. Remote exploitation is possible, potentially exposing sensitive information. All users of ZZCMS 2025 with the vulnerable component are affected.
💻 Affected Systems
- ZZCMS
📦 What is this software?
Zzcms by Zzcms
⚠️ Risk & Real-World Impact
Worst Case
Sensitive user data (potentially including passwords, personal information) stored in cleartext files accessible to attackers, leading to data breaches and credential theft.
Likely Case
Exposure of user registration data stored in cleartext files that could be accessed through directory traversal or improper file permissions.
If Mitigated
Limited exposure if proper file system permissions restrict access and data is minimal or non-sensitive.
🎯 Exploit Status
Exploit has been published according to references, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None provided in references
Restart Required: No
Instructions:
No official patch available. Monitor vendor channels for updates.
🔧 Temporary Workarounds
Restrict access to /reg/user_save.php
allBlock or restrict access to the vulnerable file using web server configuration or firewall rules.
# Apache: Add to .htaccess
<Files "user_save.php">
Order Deny,Allow
Deny from all
</Files>
# Nginx: Add to server block
location ~ /reg/user_save\.php$ {
deny all;
}
Implement proper file permissions
linuxEnsure files created by the application have restrictive permissions and are stored outside web root.
# Set restrictive permissions on data directories
chmod 600 /path/to/data/files/*
# Move data files outside web root
mv /var/www/html/reg/data /secure/location/
🧯 If You Can't Patch
- Implement network segmentation to isolate ZZCMS systems from sensitive networks.
- Deploy file integrity monitoring to detect unauthorized access to data files.
🔍 How to Verify
Check if Vulnerable:
Check if /reg/user_save.php exists and creates files with cleartext data. Test by submitting user registration data and examining created files.Check Version:
Check ZZCMS version in admin panel or configuration files.Verify Fix Applied:
Verify that user data is no longer stored in cleartext files or that access to vulnerable files is blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to /reg/user_save.php
- File creation/modification events in data directories
Network Indicators:
- HTTP requests to /reg/user_save.php with POST data
- Unusual outbound data transfers
SIEM Query:
source="web_logs" AND (uri="/reg/user_save.php" OR uri LIKE "%/reg/user_save%")