Overview
A critical SQL Injection vulnerability, identified as CVE-2025-65379, has been discovered in PHPGurukul Billing System version 1.0. This vulnerability resides within the /admin/password-recovery.php endpoint and allows attackers to potentially compromise the application’s database by injecting malicious SQL code.
Technical Details
The vulnerability stems from the insufficient validation and sanitization of user-supplied input within the /admin/password-recovery.php script. Specifically, the username and mobileno parameters are directly concatenated into a backend SQL query without proper escaping. This allows a malicious actor to inject arbitrary SQL code by crafting a specially crafted request to the password recovery endpoint. For example:
/admin/password-recovery.php?username='; DROP TABLE users; --&mobileno=1234567890
This type of attack could allow an attacker to bypass authentication, retrieve sensitive data, modify database records, or even execute arbitrary commands on the database server.
CVSS Analysis
Due to the absence of a formal CVSS score at the time of publication, the severity is currently marked as N/A. However, given the potential for complete database compromise, this vulnerability should be considered highly critical. A CVSS score will likely be assigned after further analysis by security professionals.
Possible Impact
The exploitation of this SQL Injection vulnerability could lead to severe consequences, including:
- Data Breach: Unauthorized access to sensitive customer data, including personal information, billing details, and payment credentials.
- Account Takeover: Attackers could gain control of administrator accounts and other user accounts.
- Data Manipulation: Malicious modification or deletion of critical data within the billing system.
- Denial of Service (DoS): Attackers could disrupt the functionality of the billing system, preventing legitimate users from accessing the service.
- Complete System Compromise: In severe cases, attackers could gain complete control over the server hosting the PHPGurukul Billing System.
Mitigation and Patch Steps
To mitigate the risk posed by CVE-2025-65379, the following steps are recommended:
- Immediate Patching: Apply the latest security patch released by PHPGurukul as soon as it becomes available. Check the official PHPGurukul website for updates.
- Input Validation: Implement robust input validation and sanitization on all user-supplied data, especially the
usernameandmobilenoparameters in/admin/password-recovery.php. Use parameterized queries or prepared statements to prevent SQL injection. - Web Application Firewall (WAF): Deploy a web application firewall (WAF) to detect and block malicious requests targeting the vulnerable endpoint. Configure the WAF to filter out common SQL injection patterns.
- Least Privilege: Ensure that the database user account used by the application has the minimum necessary privileges. Avoid using a database user with root or administrative privileges.
- Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities in the PHPGurukul Billing System.
