CVE-2025-60641
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code on systems running Vfront 0.99.52 by exploiting insecure deserialization in the mexcel.php file. Attackers can achieve remote code execution, SQL injection, or other malicious actions by sending specially crafted POST requests. All users of Vfront 0.99.52 with the vulnerable file accessible are affected.
💻 Affected Systems
- Vfront
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, or ransomware deployment.
Likely Case
Remote code execution allowing attackers to execute arbitrary commands, access databases, or modify files.
If Mitigated
Attack blocked at web application firewall or input validation layer with no impact.
🎯 Exploit Status
Requires crafting specific PHP object payloads but no authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.99.53 or later
Vendor Advisory: http://vfront.com
Restart Required: No
Instructions:
1. Download latest version from vendor website. 2. Replace mexcel.php with patched version. 3. Verify file permissions are correct. 4. Test functionality.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation before deserialization to reject malicious payloads.
Modify mexcel.php to validate $_POST['mexcel'] content before processing
Restrict Access
allBlock access to mexcel.php via web server configuration.
Add 'Deny from all' to .htaccess or equivalent for mexcel.php
🧯 If You Can't Patch
- Implement WAF rules to block requests containing serialized PHP object patterns
- Restrict network access to the Vfront application to trusted IPs only
🔍 How to Verify
Check if Vulnerable:
Check if mexcel.php exists in Vfront installation and contains unserialize(base64_decode($_POST['mexcel'])) without allowed_classes parameter.Check Version:
Check Vfront version in configuration files or admin interface.Verify Fix Applied:
Verify mexcel.php has been updated to use allowed_classes parameter or removed vulnerable deserialization.📡 Detection & Monitoring
Log Indicators:
- POST requests to mexcel.php with base64 encoded data
- Unusual PHP error logs related to unserialize()
Network Indicators:
- HTTP POST requests to /mexcel.php with base64 payloads
- Unusual outbound connections from web server
SIEM Query:
source="web_logs" AND uri="/mexcel.php" AND method="POST" AND size>1000