CVE-2025-14729
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on CTCMS Content Management System installations through code injection in the backend configuration module. Attackers can exploit this by manipulating the CT_App_Paytype parameter. All CTCMS installations up to version 2.1.2 are affected.
💻 Affected Systems
- CTCMS Content Management System
📦 What is this software?
Ctcms by Ctcms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with remote code execution leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Unauthorized access to the CMS backend, configuration manipulation, and potential privilege escalation to administrative control.
If Mitigated
Limited impact with proper input validation and output encoding preventing successful exploitation.
🎯 Exploit Status
Exploit requires backend access but is publicly documented and relatively simple to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check for official patch from CTCMS vendor. 2. If patch available, download and apply following vendor instructions. 3. Verify fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and output encoding for the CT_App_Paytype parameter
Modify /ctcms/libs/Ct_App.php to sanitize user input before processing
Access Restriction
allRestrict access to the backend configuration module to trusted IP addresses only
Add IP-based restrictions to .htaccess or web server configuration for /ctcms/admin/ paths
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block suspicious payloads targeting the vulnerable endpoint
- Disable or remove the vulnerable backend configuration module if not essential
🔍 How to Verify
Check if Vulnerable:
Check CTCMS version in admin panel or by examining version files. If version is 2.1.2 or earlier, system is vulnerable.Check Version:
Check /ctcms/version.txt or admin panel version displayVerify Fix Applied:
Test the Save function in /ctcms/libs/Ct_App.php with malicious CT_App_Paytype input to ensure code injection is prevented.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /ctcms/libs/Ct_App.php with Save function
- Suspicious payloads containing PHP code or system commands in CT_App_Paytype parameter
Network Indicators:
- HTTP requests to backend configuration endpoints from unauthorized sources
- Unusual outbound connections from the CTCMS server post-exploitation
SIEM Query:
source="web_logs" AND uri="/ctcms/libs/Ct_App.php" AND method="POST" AND (param="CT_App_Paytype" AND value MATCHES "(system|exec|eval|passthru|shell_exec|`)")