CVE-2025-11904
📋 TL;DR
This SQL injection vulnerability in ChanCMS allows attackers to manipulate database queries through the hasUse function. It affects ChanCMS versions up to 3.3.2 and can be exploited remotely without authentication. Organizations using vulnerable versions are at risk of data theft, modification, or system compromise.
💻 Affected Systems
- ChanCMS
📦 What is this software?
Chancms by Chancms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover via SQL injection to execute arbitrary commands.
Likely Case
Unauthorized data access, extraction of sensitive information, or database manipulation affecting application integrity.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions restricting damage to non-critical data.
🎯 Exploit Status
Exploit details are publicly available in GitHub repositories. Remote exploitation is possible without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor did not respond to disclosure. Consider upgrading if newer versions exist or apply manual fixes.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for the hasUse function to prevent SQL injection.
Modify /cms/model/hasUse to use prepared statements with parameter binding
Web Application Firewall
allDeploy WAF rules to block SQL injection patterns targeting the vulnerable endpoint.
Configure WAF to block SQL injection patterns for /cms/model/hasUse
🧯 If You Can't Patch
- Isolate the ChanCMS instance behind a reverse proxy with strict input filtering
- Implement network segmentation to limit database access from the application server
🔍 How to Verify
Check if Vulnerable:
Check if ChanCMS version is 3.3.2 or earlier and if /cms/model/hasUse file exists with vulnerable code patterns.Check Version:
Check ChanCMS configuration files or admin panel for version informationVerify Fix Applied:
Test the hasUse function with SQL injection payloads to confirm they are properly rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from web application logs
- SQL error messages in application logs
- Multiple failed login attempts or parameter manipulation
Network Indicators:
- Unusual SQL patterns in HTTP requests to /cms/model/hasUse
- Excessive database connections from web server
SIEM Query:
source="web_logs" AND (uri="/cms/model/hasUse" AND (payload CONTAINS "UNION" OR payload CONTAINS "SELECT" OR payload CONTAINS "INSERT"))🔗 References
- https://github.com/NarcherAlter/Security_Note/blob/main/Vulnerability_Discovery/ChanCMSv3.3.2.md#222
- https://github.com/NarcherAlter/Security_Note/blob/main/Vulnerability_Discovery/ChanCMSv3.3.2.md#cmsmodelhasuse
- https://vuldb.com/?ctiid.328914
- https://vuldb.com/?id.328914
- https://vuldb.com/?submit.670274
