CVE-2026-4014
📋 TL;DR
CVE-2026-4014 is an SQL injection vulnerability in itsourcecode Cafe Reservation System 1.0 that allows attackers to manipulate database queries through the username parameter during registration. This affects all users running the vulnerable version of the software. Remote exploitation is possible without authentication.
💻 Affected Systems
- itsourcecode Cafe Reservation System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, and potential remote code execution depending on database configuration.
Likely Case
Unauthorized access to sensitive customer data, reservation information, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation and database permissions, though SQL injection attempts would still be logged.
🎯 Exploit Status
Exploit code is publicly available and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://itsourcecode.com/
Restart Required: No
Instructions:
No official patch available. Consider implementing input validation and parameterized queries in the source code.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious requests.
Input Validation Filter
allImplement server-side input validation to sanitize username parameter.
🧯 If You Can't Patch
- Isolate the system from the internet and restrict access to internal networks only.
- Implement strict database permissions and monitor for unusual SQL queries.
🔍 How to Verify
Check if Vulnerable:
Test the /curvus2/signup.php endpoint with SQL injection payloads in the username parameter.Check Version:
Check application version in admin panel or configuration files.Verify Fix Applied:
Verify that SQL injection attempts no longer succeed and that input validation is properly implemented.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed registration attempts with special characters
Network Indicators:
- HTTP POST requests to /curvus2/signup.php containing SQL keywords
SIEM Query:
source="web_logs" AND uri="/curvus2/signup.php" AND (username CONTAINS "' OR" OR username CONTAINS "--" OR username CONTAINS ";")