CVE-2025-11107
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary SQL commands via the 'corcode' parameter in the /schedulingsystem/addcourse.php file in Simple Scheduling System 1.0. Attackers can potentially read, modify, or delete database content, including sensitive information. Organizations using Simple Scheduling System 1.0 are affected.
💻 Affected Systems
- Simple Scheduling System
📦 What is this software?
⚠️ 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 access to sensitive scheduling data, user information, or database manipulation.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-critical data.
🎯 Exploit Status
The exploit has been made public and SQL injection vulnerabilities are commonly weaponized with automated tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If no patch available, implement workarounds. 3. Consider migrating to supported software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd parameterized queries or input validation to the addcourse.php file
Modify addcourse.php to use prepared statements: $stmt = $conn->prepare('INSERT INTO courses (corcode) VALUES (?)'); $stmt->bind_param('s', $corcode);
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns
Configure WAF to block requests containing SQL keywords in corcode parameter
🧯 If You Can't Patch
- Restrict network access to the scheduling system using firewall rules
- Implement database user with minimal permissions (read-only if possible)
🔍 How to Verify
Check if Vulnerable:
Test the /schedulingsystem/addcourse.php endpoint with SQL injection payloads in the corcode parameterCheck Version:
Check application files for version information or review installation documentationVerify Fix Applied:
Attempt SQL injection tests and verify they are blocked or properly handled📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from web server
- Multiple failed login attempts or parameter manipulation in access logs
- SQL error messages in application logs
Network Indicators:
- HTTP requests to addcourse.php with SQL keywords in parameters
- Unusual database traffic patterns from web server
SIEM Query:
source="web_logs" AND uri="/schedulingsystem/addcourse.php" AND (param="corcode" AND value CONTAINS "UNION" OR "SELECT" OR "--" OR ";")