CVE-2025-25793
📋 TL;DR
SeaCMS v13.3 contains a remote code execution vulnerability in the admin_notify.php component that allows attackers to execute arbitrary code on affected systems. This affects all SeaCMS v13.3 installations with the vulnerable component accessible. Attackers could potentially gain full control of the web server.
💻 Affected Systems
- SeaCMS
📦 What is this software?
Seacms by Seacms
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, install malware, steal data, pivot to internal networks, and maintain persistent access.
Likely Case
Web server compromise leading to website defacement, data theft, cryptocurrency mining, or use as part of a botnet.
If Mitigated
Limited impact if proper network segmentation, web application firewalls, and least privilege principles are implemented.
🎯 Exploit Status
Exploitation requires access to the admin interface, making authentication bypass or stolen credentials necessary for attack.
🛠️ 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. If patch available, download and apply according to vendor instructions. 3. Test functionality after patching.
🔧 Temporary Workarounds
Restrict admin_notify.php access
allBlock access to the vulnerable component using web server configuration or firewall rules.
# Apache: <Location /admin/admin_notify.php> Require all denied </Location>
# Nginx: location ~ /admin/admin_notify.php { deny all; }
Implement Web Application Firewall
allDeploy WAF rules to block RCE attempts targeting admin_notify.php.
🧯 If You Can't Patch
- Isolate SeaCMS instance in a DMZ with strict inbound/outbound firewall rules
- Implement multi-factor authentication for admin access and monitor for suspicious login attempts
🔍 How to Verify
Check if Vulnerable:
Check if SeaCMS version is 13.3 and admin_notify.php exists in the admin directory.Check Version:
Check SeaCMS configuration files or admin panel for version information.Verify Fix Applied:
Verify admin_notify.php is patched or inaccessible, and test with known exploit attempts.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to admin_notify.php
- System command execution in web logs
- Unauthorized admin login attempts
Network Indicators:
- Outbound connections from web server to suspicious IPs
- Unusual traffic patterns to admin interface
SIEM Query:
source="web_logs" AND (url="*admin_notify.php*" AND (method="POST" OR params="*cmd*" OR params="*system*"))