CVE-2025-3976

7.3 HIGH

📋 TL;DR

This critical SQL injection vulnerability in PHPGurukul COVID19 Testing Management System 1.0 allows attackers to manipulate database queries via the mobilenumber parameter in /new-user-testing.php. Remote attackers can potentially read, modify, or delete sensitive data including patient records and system credentials. Organizations using this specific version of the COVID19 testing management system are affected.

💻 Affected Systems

Products:
  • PHPGurukul COVID19 Testing Management System
Versions: 1.0
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default installation. Any system with the /new-user-testing.php endpoint accessible is vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to exposure of all patient health data, administrative credentials theft, and potential system takeover through privilege escalation.

🟠

Likely Case

Unauthorized access to sensitive patient testing records, personal information, and potential data exfiltration or manipulation.

🟢

If Mitigated

Limited impact with proper input validation and database permissions preventing data modification or system access.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit details are publicly available on GitHub. The vulnerability requires no authentication and SQL injection is straightforward to exploit.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://phpgurukul.com/

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative software or implementing workarounds.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement strict input validation and parameterized queries for the mobilenumber parameter in /new-user-testing.php

Web Application Firewall Rules

all

Deploy WAF rules to block SQL injection patterns targeting the vulnerable endpoint

🧯 If You Can't Patch

  • Isolate the system from internet access and restrict internal network access
  • Implement strict database permissions limiting the application user to only necessary operations

🔍 How to Verify

Check if Vulnerable:

Test the /new-user-testing.php endpoint with SQL injection payloads in the mobilenumber parameter

Check Version:

Check system documentation or configuration files for version information

Verify Fix Applied:

Verify that SQL injection attempts no longer succeed and proper input validation is implemented

📡 Detection & Monitoring

Log Indicators:

  • Unusual database queries from web application logs
  • Multiple failed login attempts or SQL errors in application logs

Network Indicators:

  • SQL injection patterns in HTTP POST requests to /new-user-testing.php
  • Unusual database connection patterns

SIEM Query:

source="web_logs" AND uri="/new-user-testing.php" AND (payload="' OR " OR payload="UNION" OR payload="SELECT")

🔗 References

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