CVE-2025-4112
📋 TL;DR
This critical SQL injection vulnerability in PHPGurukul Student Record System allows remote attackers to execute arbitrary SQL commands via the 'course-short' parameter in /add-course.php. This affects all organizations using the vulnerable version, potentially leading to data theft, manipulation, or system compromise.
💻 Affected Systems
- PHPGurukul Student Record System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive student records, administrative credentials theft, and potential server takeover via SQL injection leading to remote code execution.
Likely Case
Unauthorized access to student records, grade manipulation, personal information theft, and potential privilege escalation within the system.
If Mitigated
Limited impact with proper input validation and WAF protection, potentially only causing application errors without data compromise.
🎯 Exploit Status
Exploit details are publicly available on GitHub. SQL injection via URL parameter requires minimal technical skill.
🛠️ 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. No official patch confirmed as of analysis.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize 'course-short' parameter
Modify add-course.php to validate/sanitize user input before SQL queries
WAF Rule Implementation
allBlock SQL injection patterns targeting /add-course.php
Add WAF rule: deny requests to /add-course.php containing SQL keywords in parameters
🧯 If You Can't Patch
- Implement web application firewall (WAF) with SQL injection rules
- Restrict access to /add-course.php to authorized users only
🔍 How to Verify
Check if Vulnerable:
Test /add-course.php with SQL injection payloads in course-short parameterCheck Version:
Check application version in admin panel or about pageVerify Fix Applied:
Attempt SQL injection after applying fixes and verify errors or blocked requests📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Multiple failed requests to /add-course.php
- Unusual database queries from web server
Network Indicators:
- HTTP requests to /add-course.php with SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri="/add-course.php" AND (param="course-short" AND value CONTAINS "UNION" OR "SELECT" OR "INSERT" OR "DELETE")