CVE-2025-44135
📋 TL;DR
This SQL injection vulnerability in Online Class and Exam Scheduling System 1.0 allows attackers to manipulate database queries through the username parameter in profile_update.php. Attackers could potentially read, modify, or delete sensitive data in the database. Organizations using this specific version of the scheduling system are affected.
💻 Affected Systems
- code-projects Online Class and Exam Scheduling System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including extraction of all user credentials, personal information, scheduling data, and potential system takeover through privilege escalation.
Likely Case
Data exfiltration of user information, manipulation of scheduling data, and potential authentication bypass.
If Mitigated
Limited impact with proper input validation and database permissions restricting unauthorized access.
🎯 Exploit Status
Exploitation requires authentication to access the profile update functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
1. Review the referenced GitHub issue for technical details. 2. Manually patch the vulnerable code by implementing parameterized queries or input validation. 3. Test the fix thoroughly before deployment.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to reject malicious username inputs containing SQL syntax.
# Add to profile_update.php before processing username
$username = filter_var($_POST['username'], FILTER_SANITIZE_STRING);
if (preg_match('/[\'\"\;\-\-\/\*\=]/', $username)) {
die('Invalid username format');
}
Web Application Firewall Rule
allBlock SQL injection patterns targeting the username parameter.
# Example ModSecurity rule
SecRule ARGS:username "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
🧯 If You Can't Patch
- Restrict access to /Scheduling/pages/profile_update.php using network controls or authentication requirements
- Implement database-level protections: use least privilege accounts, enable query logging, and regular backups
🔍 How to Verify
Check if Vulnerable:
Test the username parameter with SQL injection payloads like ' OR '1'='1 and observe if database errors or unexpected behavior occurs.Check Version:
Check the system documentation or configuration files for version information, typically in README files or admin panels.Verify Fix Applied:
Attempt the same SQL injection tests after applying fixes and confirm they are rejected without database interaction.📡 Detection & Monitoring
Log Indicators:
- Unusual database query patterns in application logs
- Multiple failed login attempts followed by profile update requests
- SQL syntax in username fields of HTTP requests
Network Indicators:
- HTTP POST requests to /Scheduling/pages/profile_update.php containing SQL keywords in parameters
SIEM Query:
source="web_logs" AND uri="/Scheduling/pages/profile_update.php" AND (username="*'*" OR username="*--*" OR username="*;*")