CVE-2025-0973
📋 TL;DR
This critical vulnerability in CmsEasy 7.7.7.9 allows remote attackers to perform path traversal attacks via the select[] parameter in the backAll_action function. This could enable unauthorized file access or manipulation. All users running the vulnerable version are affected.
💻 Affected Systems
- CmsEasy
📦 What is this software?
Cmseasy by Cmseasy
⚠️ Risk & Real-World Impact
Worst Case
Remote attackers could read, modify, or delete sensitive system files, potentially leading to complete system compromise or data exfiltration.
Likely Case
Attackers could access configuration files, source code, or database backups, potentially leading to credential theft or further exploitation.
If Mitigated
With proper file permissions and web server restrictions, impact would be limited to accessible files within the web directory.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easily weaponizable.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or apply workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the select[] parameter to prevent directory traversal sequences.
Modify lib/admin/database_admin.php to validate select[] parameter against allowed values
Access Restriction
allRestrict access to the vulnerable endpoint via web server configuration or firewall rules.
# Apache: <Location "/index.php?case=database&act=backAll">
Order deny,allow
Deny from all
</Location>
# Nginx: location ~* "\?case=database&act=backAll" { deny all; }
🧯 If You Can't Patch
- Implement strict file permissions to limit web server access to sensitive directories.
- Deploy a WAF (Web Application Firewall) with rules to block path traversal attempts.
🔍 How to Verify
Check if Vulnerable:
Check if your CmsEasy version is 7.7.7.9 and if the endpoint /index.php?case=database&act=backAll&admin_dir=admin&site=default is accessible.Check Version:
Check CmsEasy version in admin panel or configuration files.Verify Fix Applied:
Test the vulnerable endpoint with path traversal payloads to confirm they are blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing "case=database&act=backAll" with suspicious select[] parameters like "../" or "..\\"
- Unusual file access patterns from web server process
Network Indicators:
- HTTP requests to vulnerable endpoint with traversal sequences in parameters
SIEM Query:
source="web_logs" AND uri="*case=database&act=backAll*" AND (param="*../*" OR param="*..\\*")