CVE-2025-26325
📋 TL;DR
ShopXO 6.4.0 contains an unrestricted file upload vulnerability in ThemeDataService.php that allows attackers to upload malicious files. This can lead to remote code execution or server compromise. All ShopXO 6.4.0 installations with the vulnerable component are affected.
💻 Affected Systems
- ShopXO
📦 What is this software?
Shopxo by Shopxo
⚠️ Risk & Real-World Impact
Worst Case
Complete server takeover through remote code execution, data exfiltration, and lateral movement within the network.
Likely Case
Webshell deployment leading to data theft, defacement, or use as a pivot point for further attacks.
If Mitigated
Limited impact with proper file upload restrictions, though some risk remains if other vulnerabilities exist.
🎯 Exploit Status
Exploitation requires authentication but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.4.1 or later
Vendor Advisory: https://github.com/gongfuxiang/shopxo/issues/86
Restart Required: No
Instructions:
1. Backup your ShopXO installation and database. 2. Download the latest version from the official repository. 3. Replace the vulnerable ThemeDataService.php file with the patched version. 4. Verify the fix by testing file upload functionality.
🔧 Temporary Workarounds
Restrict File Upload Types
allImplement server-side validation to only allow specific file extensions (e.g., .jpg, .png) and block executable files.
Modify ThemeDataService.php to add file extension validation before processing uploads.
Disable Theme Upload Feature
allTemporarily disable the theme upload functionality in ShopXO admin panel until patched.
Comment out or remove theme upload code in relevant PHP files.
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with rules to block malicious file uploads.
- Restrict access to the admin panel to trusted IP addresses only.
🔍 How to Verify
Check if Vulnerable:
Check if your ShopXO version is 6.4.0 by examining the version file or admin panel.Check Version:
Check /application/config/version.php or admin dashboard for version information.Verify Fix Applied:
After patching, attempt to upload a malicious file (e.g., .php) through the theme upload feature; it should be rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to theme directories
- Multiple failed upload attempts with suspicious extensions
Network Indicators:
- HTTP POST requests to theme upload endpoints with executable file content
SIEM Query:
source="web_server" AND (uri_path="/admin/theme/upload" OR uri_path LIKE "%/theme/%") AND file_extension IN ("php", "exe", "sh")