CVE-2025-47787
📋 TL;DR
Emlog Pro versions before 2.5.10 contain a critical file upload vulnerability in the store.php component that fails to properly validate remotely downloaded ZIP plugin files. This allows attackers to upload malicious files and execute arbitrary code on vulnerable systems. All Emlog Pro installations prior to version 2.5.10 are affected.
💻 Affected Systems
- Emlog Pro
📦 What is this software?
Emlog by Emlog
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution, allowing attackers to take complete control of the server, steal data, deploy ransomware, or pivot to other systems.
Likely Case
Remote code execution leading to website defacement, data theft, or installation of backdoors for persistent access.
If Mitigated
Attackers can upload malicious files but cannot execute them due to proper file validation and execution restrictions.
🎯 Exploit Status
Exploitation requires access to the plugin installation functionality, which typically requires administrative privileges.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5.10
Vendor Advisory: https://github.com/emlog/emlog/security/advisories/GHSA-4mcj-8gvh-p753
Restart Required: No
Instructions:
1. Backup your Emlog Pro installation and database. 2. Download Emlog Pro version 2.5.10 or later from the official repository. 3. Replace all files with the new version, preserving your configuration files. 4. Verify the update was successful by checking the version in the admin panel.
🔧 Temporary Workarounds
Disable Plugin Installation
allTemporarily disable the ability to install plugins from remote sources.
# Modify store.php to restrict plugin downloads or disable the plugin installation feature entirely
File Upload Restrictions
allImplement strict file upload validation and execution restrictions.
# Configure web server to block execution of uploaded files in plugin directories
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to the Emlog Pro admin interface.
- Deploy a Web Application Firewall (WAF) with rules to detect and block malicious file upload attempts.
🔍 How to Verify
Check if Vulnerable:
Check the Emlog Pro version in the admin panel or by examining the version.php file. If version is below 2.5.10, the system is vulnerable.Check Version:
Check the admin panel dashboard or examine the content of /content/version.php fileVerify Fix Applied:
After updating, verify the version shows 2.5.10 or higher in the admin panel and check that the store.php file has been updated with proper file validation.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to plugin directories
- Multiple failed plugin installation attempts
- Suspicious POST requests to store.php
Network Indicators:
- Unusual outbound connections from the web server
- Traffic patterns indicating data exfiltration
SIEM Query:
source="web_server_logs" AND (uri="/store.php" OR uri="/admin/store.php") AND (status=200 OR status=500) AND size>1000000