CVE-2025-65380
📋 TL;DR
CVE-2025-65380 is an SQL injection vulnerability in PHPGurukul Billing System 1.0 that allows attackers to manipulate database queries through the admin login page. This affects all organizations using this specific billing system version. Attackers could potentially extract sensitive data, modify database contents, or bypass authentication.
💻 Affected Systems
- PHPGurukul Billing System
📦 What is this software?
Billing System by Phpgurukul
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, authentication bypass, privilege escalation, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized access to sensitive billing data, customer information exposure, and potential authentication bypass to gain admin privileges.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing successful exploitation.
🎯 Exploit Status
SQL injection via username parameter in admin login page. Public GitHub repository contains proof-of-concept details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Implement workarounds or migrate to alternative billing software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize username input before processing
Modify admin/index.php to use prepared statements with parameterized queries
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns
Configure WAF to detect and block SQL injection attempts on admin/index.php
🧯 If You Can't Patch
- Restrict access to admin/index.php endpoint using IP whitelisting or network segmentation
- Implement strong authentication requirements and monitor for suspicious login attempts
🔍 How to Verify
Check if Vulnerable:
Test admin/index.php endpoint with SQL injection payloads in username parameter (e.g., admin' OR '1'='1)Check Version:
Check PHPGurukul Billing System version in documentation or configuration filesVerify Fix Applied:
Verify that SQL injection payloads no longer work and prepared statements are implemented📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts with SQL syntax in username field
- Successful admin logins from unexpected IP addresses
Network Indicators:
- HTTP POST requests to admin/index.php containing SQL keywords in parameters
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND uri="/admin/index.php" AND (username CONTAINS "' OR" OR username CONTAINS "UNION" OR username CONTAINS "SELECT")