CVE-2025-9399
📋 TL;DR
This vulnerability allows remote attackers to execute SQL injection attacks against YiFang CMS versions up to 2.0.5 by manipulating the new_url parameter in the app/logic/L_tool.php file. The exploit is publicly available and can be launched remotely without authentication. Organizations using vulnerable versions of YiFang CMS are affected.
💻 Affected Systems
- YiFang CMS
📦 What is this software?
Yifang by Wanglongcn
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, or complete system takeover via SQL injection to execute arbitrary commands.
Likely Case
Unauthorized data access, extraction of sensitive information from the database, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation, parameterized queries, and web application firewall rules blocking SQL injection patterns.
🎯 Exploit Status
Proof of concept is publicly available on GitHub. The vulnerability can be exploited remotely without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch is available as the vendor did not respond to disclosure. Consider upgrading to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitization for the new_url parameter in app/logic/L_tool.php to prevent SQL injection.
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns targeting the vulnerable endpoint.
🧯 If You Can't Patch
- Isolate the affected system from the internet and restrict access to authorized users only.
- Implement network segmentation and monitor all traffic to/from the vulnerable system for suspicious SQL queries.
🔍 How to Verify
Check if Vulnerable:
Check if YiFang CMS version is 2.0.5 or earlier and if app/logic/L_tool.php exists with the vulnerable new_url parameter.Check Version:
Check the CMS version in the admin panel or configuration files.Verify Fix Applied:
Test the new_url parameter with SQL injection payloads to ensure they are properly sanitized or blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs
- Multiple failed login attempts or database errors
Network Indicators:
- HTTP requests containing SQL injection patterns targeting /app/logic/L_tool.php
SIEM Query:
source="web_logs" AND (url="*L_tool.php*" AND (payload="*UNION*" OR payload="*SELECT*" OR payload="*INSERT*" OR payload="*DELETE*"))