CVE-2023-7137 in Client Details System
Summary
by MITRE • 12/29/2023
A vulnerability, which was classified as critical, has been found in code-projects Client Details System 1.0. Affected by this issue is some unknown functionality of the component HTTP POST Request Handler. The manipulation of the argument uemail leads to sql injection. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249140.
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Analysis
by VulDB Data Team • 10/29/2025
This critical vulnerability exists within the code-projects Client Details System version 1.0, specifically within its HTTP POST Request Handler component where improper input validation allows for SQL injection attacks. The flaw is triggered when the argument uemail is manipulated, enabling attackers to inject malicious SQL code into the database query execution flow. This vulnerability represents a severe security weakness that directly compromises the integrity and confidentiality of the system's underlying database infrastructure. The disclosure of this exploit to the public community significantly increases the risk of widespread exploitation, as malicious actors can now leverage this known vulnerability without requiring additional reconnaissance or development effort. The vulnerability falls under the CWE-89 category of SQL Injection, which is classified as a critical weakness in software security architecture. According to the ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application, as it targets a publicly accessible web application component that processes user input through HTTP POST requests. The exploitation of this vulnerability could enable attackers to extract sensitive client data, modify database records, or potentially escalate privileges within the system. The impact extends beyond simple data theft, as SQL injection attacks can provide attackers with complete control over the database server, potentially leading to full system compromise. The vulnerability's critical classification stems from the ease of exploitation and the severe consequences of successful attack execution. Organizations running this specific version of the Client Details System are immediately at risk, as the exploit is publicly available and the attack vector is straightforward to implement. The weakness in input handling demonstrates a fundamental lack of proper data sanitization and parameterized query implementation within the application's codebase.
The technical exploitation of this SQL injection vulnerability occurs when user input from the uemail parameter is directly incorporated into database queries without adequate sanitization or parameterization. This allows attackers to manipulate the SQL execution flow by injecting malicious SQL payloads through the email field, potentially bypassing authentication mechanisms or extracting confidential information from the database. The vulnerability's impact is amplified by the fact that the HTTP POST Request Handler processes this input without proper validation, creating an attack surface that can be exploited through automated scanning tools or manual exploitation techniques. The attack vector is particularly dangerous because it requires minimal skill to execute successfully, making it attractive to both skilled and less experienced attackers. The vulnerability's classification as critical aligns with industry standards for SQL injection flaws, as demonstrated by the CWE-89 weakness classification, which emphasizes the severe implications of improper SQL query construction. Security researchers have noted that this type of vulnerability often indicates broader architectural issues within the application's codebase, suggesting that similar weaknesses may exist in other input handling components. The public disclosure of the exploit through VDB-249140 means that threat actors have immediate access to the attack methodology, removing any barriers to implementation. This vulnerability directly violates secure coding practices and represents a failure to implement proper input validation and output encoding mechanisms that are fundamental to preventing SQL injection attacks. The exploitability is further enhanced by the fact that it requires no specialized tools beyond basic web application testing frameworks, making it accessible to a wide range of potential attackers.
Organizations utilizing this vulnerable system face significant operational risks including unauthorized data access, data corruption, and potential complete system compromise. The vulnerability's exploitation could result in the exposure of sensitive client information stored within the database, including personal identification details, contact information, and potentially financial data. The impact on business operations extends beyond immediate data loss, as successful exploitation could lead to regulatory compliance violations, legal liability, and reputational damage. The vulnerability's critical nature necessitates immediate remediation efforts, as the window of opportunity for attackers to exploit this weakness is not limited by the need for additional reconnaissance. The attack could be executed through various means including automated scanning tools that target known vulnerabilities in web applications, or through manual exploitation techniques by skilled attackers. The potential for privilege escalation exists if the database user account has elevated permissions, which could allow attackers to execute system commands or access additional system resources. Organizations must also consider the broader implications of this vulnerability on their overall security posture, as it may indicate other security weaknesses in the application's architecture. The vulnerability's presence in a client details system specifically raises concerns about customer privacy and data protection compliance requirements that organizations must maintain. The exploitation could lead to cascading effects throughout the organization's network infrastructure if proper security boundaries are not maintained between the vulnerable application and other systems. Additionally, the vulnerability may expose the organization to third-party liability if client data is compromised, particularly in regulated industries where data protection is mandatory. The financial impact of such an exploitation could include costs related to incident response, regulatory fines, legal proceedings, and customer notification requirements.
Immediate remediation actions should focus on implementing proper input validation and parameterized queries to prevent SQL injection attacks. The most effective mitigation strategy involves replacing direct string concatenation of user input with parameterized database queries or stored procedures that properly separate SQL code from data. Organizations should also implement proper input sanitization techniques, including length validation, character set restrictions, and encoding of special characters to prevent malicious payloads from being executed. The application should be updated to the latest version of the Client Details System where this vulnerability has been addressed through proper code modifications. Network-based mitigations such as web application firewalls can provide additional protection by filtering suspicious requests before they reach the vulnerable application component. Regular security testing and code reviews should be implemented to identify similar vulnerabilities throughout the application's codebase. Access controls and database user permissions should be reviewed to minimize the potential impact of successful exploitation, ensuring that database accounts have the minimum required privileges. Organizations should also implement monitoring and logging mechanisms to detect potential exploitation attempts and establish incident response procedures for rapid remediation. The vulnerability highlights the importance of secure coding practices and the need for comprehensive security training for development teams. Regular vulnerability assessments and penetration testing should be conducted to identify and remediate similar weaknesses in other applications within the organization's infrastructure. Security patches and updates should be applied promptly to prevent exploitation of known vulnerabilities, with particular attention to publicly disclosed exploits that are actively being used in the wild. The implementation of automated security scanning tools can help identify similar vulnerabilities across the organization's application portfolio, ensuring comprehensive protection against SQL injection and other common web application attacks.