CVE-2025-51659
📋 TL;DR
SemCms v5.0 contains a SQL injection vulnerability in the ID parameter of SEMCMS_Products.php. This allows attackers to execute arbitrary SQL commands on the database. Users running SemCms v5.0 are affected.
💻 Affected Systems
- SemCms
📦 What is this software?
Semcms by Sem Cms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, and potential remote code execution via database functions.
Likely Case
Unauthorized data access, data exfiltration, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-sensitive data.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easy to weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://semcms.com
Restart Required: No
Instructions:
Check vendor website for updates or patches. If unavailable, implement workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for the ID parameter in SEMCMS_Products.php.
Modify SEMCMS_Products.php to use prepared statements with parameterized queries.
Web Application Firewall (WAF)
allDeploy a WAF to block SQL injection attempts targeting the ID parameter.
Configure WAF rules to detect and block SQL injection patterns in requests to SEMCMS_Products.php.
🧯 If You Can't Patch
- Restrict access to SEMCMS_Products.php to authorized users only.
- Monitor database logs for unusual SQL queries and implement network segmentation.
🔍 How to Verify
Check if Vulnerable:
Review SEMCMS_Products.php for unsanitized ID parameter usage and test with SQL injection payloads.Check Version:
Check the version in SemCms configuration files or admin panel.Verify Fix Applied:
Test the ID parameter with SQL injection payloads to ensure they are blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs, especially involving the ID parameter.
Network Indicators:
- HTTP requests to SEMCMS_Products.php with SQL injection patterns in parameters.
SIEM Query:
source="web_logs" AND url="*SEMCMS_Products.php*" AND (param="*OR*" OR param="*UNION*" OR param="*SELECT*" OR param="*--*" OR param="*;*" OR param="*'*" OR param="*"*" OR param="*%*" OR param="*_*" OR param="*[^a-zA-Z0-9]*")