CVE-2025-11105
📋 TL;DR
CVE-2025-11105 is an SQL injection vulnerability in code-projects Simple Scheduling System 1.0 affecting the /schedulingsystem/addsubject.php file. Attackers can manipulate the 'subcode' parameter to execute arbitrary SQL commands, potentially compromising the database. Organizations using this specific software version are affected.
💻 Affected Systems
- code-projects Simple Scheduling System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, modification, deletion, and potential remote code execution via database functions.
Likely Case
Unauthorized data access, extraction of sensitive information, and potential privilege escalation within the database.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permission restrictions in place.
🎯 Exploit Status
Exploit details are publicly available and SQL injection is a well-understood attack vector.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
1. Check vendor website for updates. 2. If no patch available, implement workarounds. 3. Consider replacing with alternative software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize the 'subcode' parameter before processing.
Modify addsubject.php to validate input using prepared statements or parameterized queries
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns targeting the vulnerable endpoint.
Configure WAF to block requests containing SQL keywords to /schedulingsystem/addsubject.php
🧯 If You Can't Patch
- Restrict access to /schedulingsystem/addsubject.php using network controls or authentication
- Implement database user with minimal privileges (read-only if possible) for the application
🔍 How to Verify
Check if Vulnerable:
Test the addsubject.php endpoint with SQL injection payloads in the 'subcode' parameter and observe database errors or unexpected behavior.Check Version:
Check software documentation or configuration files for version information.Verify Fix Applied:
Retest with SQL injection payloads after implementing fixes; successful attacks should be blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from web server
- SQL syntax errors in application logs
- Multiple failed login attempts via addsubject.php
Network Indicators:
- HTTP POST requests to /schedulingsystem/addsubject.php with SQL keywords in parameters
- Unusual traffic patterns to the vulnerable endpoint
SIEM Query:
source="web_logs" AND uri="/schedulingsystem/addsubject.php" AND (param="subcode" AND value CONTAINS "UNION" OR "SELECT" OR "INSERT" OR "DELETE")