CVE-2026-0803
📋 TL;DR
This CVE describes a SQL injection vulnerability in PHPGurukul Online Course Registration System that allows attackers to manipulate database queries through the enroll.php endpoint. Organizations using versions up to 3.1 are affected, potentially exposing sensitive student data and system integrity. Remote attackers can exploit this to execute arbitrary SQL commands.
💻 Affected Systems
- PHPGurukul Online Course Registration System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, privilege escalation, and potential system takeover.
Likely Case
Unauthorized access to student records, course enrollment data, and personal information stored in the database.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-critical data.
🎯 Exploit Status
Exploit details are publicly available, making this easily weaponizable. No authentication required for exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://phpgurukul.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If patch available, download and apply. 3. Test functionality after update. 4. Monitor for any issues.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for all user inputs in enroll.php
Modify PHP code to use prepared statements: $stmt = $conn->prepare('SELECT * FROM table WHERE field = ?'); $stmt->bind_param('s', $input);
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns targeting enroll.php parameters
Add WAF rule: Block requests containing SQL keywords (UNION, SELECT, INSERT, etc.) in enroll.php parameters
🧯 If You Can't Patch
- Isolate the system behind a reverse proxy with strict input filtering
- Implement network segmentation to limit database access from the application server
🔍 How to Verify
Check if Vulnerable:
Test enroll.php endpoint with SQL injection payloads in studentregno, Pincode, session, department, level, course, or sem parametersCheck Version:
Check system documentation or admin panel for version information, or examine source code headersVerify Fix Applied:
Attempt SQL injection tests after fixes; successful queries should return errors or be blocked📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts or parameter manipulation in access logs
- Unexpected database queries from application user
Network Indicators:
- HTTP requests to enroll.php with SQL keywords in parameters
- Unusual database traffic patterns from application server
SIEM Query:
source="web_logs" AND uri="/enroll.php" AND (param="*SELECT*" OR param="*UNION*" OR param="*INSERT*" OR param="*DELETE*")