CVE-2025-25802

5.1 MEDIUM

📋 TL;DR

SeaCMS v13.3 contains a remote code execution vulnerability in the admin_ip.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 can potentially take full control of the web server.

💻 Affected Systems

Products:
  • SeaCMS
Versions: v13.3
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires admin_ip.php component to be accessible, which is typically part of default installations.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attacker to execute arbitrary commands, install malware, steal data, and pivot to other systems.

🟠

Likely Case

Web server compromise leading to website defacement, data theft, and installation of backdoors or cryptocurrency miners.

🟢

If Mitigated

Limited impact if proper network segmentation, WAF rules, and access controls prevent exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploit requires authentication to admin panel. Public proof-of-concept available on GitHub.

🛠️ 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 admin_ip.php is no longer vulnerable

🔧 Temporary Workarounds

Restrict admin panel access

all

Limit access to admin panel to trusted IP addresses only

# Configure web server (Apache example)
# In .htaccess or virtual host config:
<Files "admin_ip.php">
    Order deny,allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>

Remove vulnerable file

linux

Delete or rename the vulnerable admin_ip.php file

rm /path/to/seacms/admin_ip.php
mv /path/to/seacms/admin_ip.php /path/to/seacms/admin_ip.php.bak

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate SeaCMS server
  • Deploy web application firewall with RCE protection rules

🔍 How to Verify

Check if Vulnerable:

Check if SeaCMS version is 13.3 and admin_ip.php file exists in installation directory

Check Version:

grep -r "SeaCMS" /path/to/seacms/ | grep "version"

Verify Fix Applied:

Verify admin_ip.php file has been removed, renamed, or patched. Test with known exploit to confirm mitigation.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to admin_ip.php
  • Suspicious command execution patterns in web logs
  • Multiple failed authentication attempts to admin panel

Network Indicators:

  • Unusual outbound connections from web server
  • Traffic patterns indicating command and control communication

SIEM Query:

source="web_logs" AND (url="*admin_ip.php*" AND (method="POST" OR params="*cmd*" OR params="*system*"))

🔗 References

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