CVE-2010-0631 in Eicra Car Rental-Script
Summary
by MITRE
Multiple SQL injection vulnerabilities in index.php in Eicra Car Rental-Script, when the plugin_id parameter is 4, allow remote attackers to execute arbitrary SQL commands via the (1) users (username) and (2) passwords parameters.
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Analysis
by VulDB Data Team • 04/30/2026
The vulnerability identified as CVE-2010-0631 represents a critical SQL injection flaw within the Eicra Car Rental-Script web application. This vulnerability specifically affects the index.php file when the plugin_id parameter is set to 4, creating a pathway for remote attackers to manipulate the application's database operations. The flaw resides in the improper handling of user input parameters, particularly the users (username) and passwords parameters, which are directly incorporated into SQL queries without adequate sanitization or parameterization. This vulnerability falls under the CWE-89 category of SQL Injection, which is classified as a high-risk vulnerability in the Common Weakness Enumeration catalog due to its potential for unauthorized data access and system compromise.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input for the username and password parameters, which are then processed by the application without proper input validation or sanitization. When the plugin_id parameter equals 4, the application's code path executes SQL queries that concatenate user-supplied data directly into the database commands. This concatenation allows attackers to inject malicious SQL code that can manipulate the database structure, extract sensitive information, modify records, or even gain administrative privileges within the application's database layer. The vulnerability is particularly dangerous because it operates at the database interaction level, potentially enabling attackers to bypass authentication mechanisms and access confidential customer data, rental records, and system configurations.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete system compromise and potential service disruption. Attackers could leverage this flaw to extract all customer information including personal details, credit card data, and rental history, which would constitute a significant data breach under privacy regulations such as GDPR or PCI DSS requirements. The vulnerability also enables attackers to modify or delete critical data within the rental system, potentially causing operational disruptions to the car rental business and financial losses. Additionally, the ability to execute arbitrary SQL commands could allow attackers to escalate privileges within the database, potentially leading to full system compromise if the database server has elevated permissions or if the application uses the same database account for multiple system functions.
Mitigation strategies for this vulnerability should include immediate implementation of parameterized queries or prepared statements to prevent SQL injection attacks, which aligns with the ATT&CK technique T1190 for SQL injection. Input validation and sanitization should be enforced at multiple layers including application code, database level, and network perimeter controls. The recommended remediation involves updating the Eicra Car Rental-Script to properly escape or parameterize all user inputs before incorporating them into SQL queries. Organizations should also implement web application firewalls to detect and block malicious SQL injection attempts, conduct regular security assessments to identify similar vulnerabilities, and establish proper access controls and database permissions to limit the impact of potential breaches. The vulnerability demonstrates the critical importance of following secure coding practices and maintaining up-to-date security measures as outlined in industry standards such as OWASP Top Ten and NIST cybersecurity frameworks.