CVE-2025-25799
📋 TL;DR
SeaCMS 13.3 contains an arbitrary file read vulnerability in the admin_safe.php file that allows attackers to read sensitive files on the server. This affects all SeaCMS 13.3 installations with default configurations. Attackers can potentially access configuration files, credentials, and other sensitive data.
💻 Affected Systems
- SeaCMS
📦 What is this software?
Seacms by Seacms
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise through reading sensitive configuration files containing database credentials, followed by database takeover and potential lateral movement.
Likely Case
Exposure of sensitive configuration files, database credentials, and application secrets leading to data breaches and unauthorized access.
If Mitigated
Limited impact with proper file permissions and network segmentation preventing access to critical system files.
🎯 Exploit Status
Exploitation requires admin panel access, but proof-of-concept is publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.seacms.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. Apply any available patches. 3. Verify the fix by testing the vulnerability.
🔧 Temporary Workarounds
Restrict admin panel access
allLimit access to admin_safe.php and admin panel to trusted IP addresses only.
# Add to .htaccess for Apache:
Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
# For nginx:
location /admin_safe.php {
allow 192.168.1.0/24;
deny all;
}
File permission hardening
linuxSet strict file permissions on sensitive configuration files.
chmod 600 config.php
chmod 600 database.php
chown www-data:www-data config.php
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the SeaCMS server.
- Deploy a web application firewall (WAF) with file read protection rules.
🔍 How to Verify
Check if Vulnerable:
Attempt to access admin_safe.php with file read parameters. Check if you can read /etc/passwd or other sensitive files.Check Version:
Check SeaCMS version in admin panel or look for version.txt file.Verify Fix Applied:
Test the same exploit after applying fixes to confirm file read is no longer possible.📡 Detection & Monitoring
Log Indicators:
- Unusual file read attempts in access logs
- Multiple requests to admin_safe.php with file parameters
- Failed authentication attempts to admin panel
Network Indicators:
- HTTP requests containing file paths in parameters
- Traffic to admin_safe.php from unexpected sources
SIEM Query:
source="web_logs" AND uri="/admin_safe.php" AND (param="file" OR param="path")