EUVD-2025-4110

Comprehensive Technical Analysis of EUVD-2025-4110

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: PHPGurukul Daily Expense Tracker System v1.1 is vulnerable to SQL Injection in the /dets/add-expense.php script via the costitem parameter. This vulnerability allows an attacker to inject malicious SQL code into the application, potentially leading to unauthorized access, data manipulation, and information disclosure.

Severity Evaluation: The vulnerability has a CVSS Base Score of 9.8, which is considered critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This high score underscores the critical nature of the vulnerability, emphasizing the need for immediate attention and remediation.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• SQL Injection: An attacker can inject malicious SQL queries through the costitem parameter in the add-expense.php script. This can be done by manipulating the input to include SQL commands that alter the intended query.
• Automated Tools: Attackers may use automated tools to scan for and exploit SQL injection vulnerabilities.

Exploitation Methods:

• Data Exfiltration: Attackers can extract sensitive information from the database, including user credentials, financial data, and other confidential information.
• Data Manipulation: Attackers can alter database records, leading to data integrity issues.
• Unauthorized Access: Attackers can gain unauthorized access to the database, potentially leading to further exploitation of the system.

3. Affected Systems and Software Versions

Affected Systems:

• PHPGurukul Daily Expense Tracker System v1.1

Software Versions:

• Specifically, the vulnerability affects version 1.1 of the PHPGurukul Daily Expense Tracker System.

4. Recommended Mitigation Strategies

Immediate Actions:

• Patching: Apply the latest security patches provided by the vendor to mitigate the vulnerability.
• Input Validation: Implement robust input validation and sanitization to ensure that user inputs are properly checked and sanitized before being used in SQL queries.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection attacks.
• Web Application Firewall (WAF): Deploy a WAF to monitor and block malicious SQL injection attempts.

Long-Term Strategies:

• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential security issues.
• Security Training: Provide security training for developers to ensure they are aware of common vulnerabilities and best practices for secure coding.
• Monitoring and Logging: Implement comprehensive monitoring and logging to detect and respond to suspicious activities promptly.

5. Impact on European Cybersecurity Landscape

Regulatory Compliance:

• GDPR: Organizations using the affected software must ensure they comply with GDPR regulations, which require robust data protection measures. Failure to address this vulnerability could result in data breaches and potential fines.
• NIS Directive: Critical infrastructure providers must adhere to the NIS Directive, which mandates stringent cybersecurity measures to protect essential services.

Reputation and Trust:

• Customer Trust: A data breach resulting from this vulnerability could erode customer trust and confidence in the affected organizations.
• Financial Impact: Organizations may face financial losses due to data breaches, legal penalties, and remediation costs.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Parameter: costitem in /dets/add-expense.php
• Exploit Example: An attacker could inject SQL code like 1'; DROP TABLE users; -- into the costitem parameter to drop the users table.

Detection and Response:

• Intrusion Detection Systems (IDS): Configure IDS to detect and alert on suspicious SQL injection patterns.
• Incident Response Plan: Develop and implement an incident response plan to quickly identify, contain, and remediate any security incidents related to this vulnerability.

References:

• GitHub Writeup: SQL Injection item add-expense costitem parameter
• NVD Entry: CVE-2025-25349

By addressing this vulnerability promptly and effectively, organizations can protect their systems and data from potential SQL injection attacks, ensuring compliance with regulatory requirements and maintaining customer trust.