CVE-2025-8226
📋 TL;DR
This vulnerability in ChanCMS allows remote attackers to access sensitive information by manipulating accessKey/secretKey parameters in the /sysApp/find endpoint. It affects ChanCMS versions up to 3.1.2, potentially exposing credentials or other confidential data to unauthorized parties.
💻 Affected Systems
- ChanCMS
📦 What is this software?
Chancms by Chancms
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain administrative credentials or sensitive system information, leading to complete system compromise or data breach.
Likely Case
Unauthorized disclosure of API keys, configuration data, or other sensitive information stored in the affected component.
If Mitigated
Limited exposure of non-critical information with proper access controls and monitoring in place.
🎯 Exploit Status
Exploit details are publicly available and remote exploitation is possible without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.1.3
Vendor Advisory: https://gitee.com/yanyutao0402/ChanCMS/issues/ICLP9V
Restart Required: Yes
Instructions:
1. Backup current installation. 2. Download ChanCMS 3.1.3 from official source. 3. Replace affected files. 4. Restart web server. 5. Verify functionality.
🔧 Temporary Workarounds
Block vulnerable endpoint
allRestrict access to /sysApp/find endpoint using web server configuration or WAF rules.
# Apache: RewriteRule ^/sysApp/find - [F]
# Nginx: location ~ /sysApp/find { deny all; }
Input validation
allImplement strict input validation for accessKey/secretKey parameters.
🧯 If You Can't Patch
- Implement network segmentation to isolate ChanCMS instances
- Deploy WAF with rules to detect and block exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check ChanCMS version in admin panel or by examining source files. Versions ≤3.1.2 are vulnerable.Check Version:
Check admin panel or examine version.php file in installation directory.Verify Fix Applied:
Confirm version is 3.1.3 or later and test /sysApp/find endpoint with malformed parameters.📡 Detection & Monitoring
Log Indicators:
- Unusual requests to /sysApp/find with manipulated parameters
- Multiple failed parameter validation attempts
Network Indicators:
- HTTP requests to /sysApp/find with unusual parameter patterns
- Traffic spikes to vulnerable endpoint
SIEM Query:
source="web_logs" AND uri="/sysApp/find" AND (param="accessKey" OR param="secretKey")