CVE-2025-8913
📋 TL;DR
CVE-2025-8913 is a critical Local File Inclusion vulnerability in WellChoose's Organization Portal System that allows unauthenticated remote attackers to execute arbitrary code on the server. This affects all organizations using the vulnerable software, potentially leading to complete system compromise.
💻 Affected Systems
- WellChoose Organization Portal System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full server takeover with attacker gaining administrative privileges, data exfiltration, ransomware deployment, and persistent backdoor installation.
Likely Case
Unauthenticated attackers execute arbitrary code to steal sensitive data, deploy malware, or pivot to internal networks.
If Mitigated
With proper network segmentation and WAF rules, impact limited to isolated web server compromise.
🎯 Exploit Status
Simple LFI to RCE chain with public proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched version
Vendor Advisory: https://www.twcert.org.tw/en/cp-139-10325-70192-2.html
Restart Required: Yes
Instructions:
1. Download latest patched version from vendor. 2. Backup current installation. 3. Apply patch according to vendor instructions. 4. Restart web service. 5. Verify fix.
🔧 Temporary Workarounds
WAF Rule Implementation
allBlock LFI patterns in web requests
# Example ModSecurity rule: SecRule ARGS "\.\./" "id:1001,phase:2,deny,msg:'Path Traversal Attempt'
Disable PHP File Inclusion Functions
linuxRestrict dangerous PHP functions via php.ini
disable_functions = include,require,include_once,require_once,file_get_contents
🧯 If You Can't Patch
- Isolate affected system in separate network segment with strict firewall rules
- Implement application-level input validation to block directory traversal patterns
🔍 How to Verify
Check if Vulnerable:
Test for LFI by attempting to include local files via vulnerable parametersCheck Version:
Check software version in admin panel or configuration filesVerify Fix Applied:
Attempt exploitation after patch; successful patch should block file inclusion attempts📡 Detection & Monitoring
Log Indicators:
- Multiple requests with '../' patterns
- Unusual file access attempts in web logs
- PHP error logs showing file inclusion failures
Network Indicators:
- HTTP requests containing path traversal sequences
- Unusual outbound connections from web server
SIEM Query:
source="web_logs" AND ("../" OR "..\\" OR "php://" OR "file://")