SQL Injection in CodeAstro Apartment Visitor Management System

Executive Summary

The CVE-2026-14766 vulnerability affects the Codeastro Apartment Visitor Management System version 1.0, specifically in the /apartment-visitor/search-result.php file. It is a critical SQL injection flaw in the searchdata POST parameter, which is directly concatenated into SQL queries without proper sanitization or parameterized binding.

This flaw allows attackers to inject malicious SQL payloads remotely without requiring authentication or elevated privileges. Exploiting this vulnerability can enable unauthorized access to the database, extraction of sensitive data such as user credentials or visitor records, modification or deletion of data, or even full system control.

Proof of concept attacks, including time-based blind and UNION-based SQL injection techniques, have been demonstrated using tools like sqlmap. The vendor has not yet provided an official patch or response.

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Impact Analysis

This vulnerability can have serious impacts including unauthorized access to sensitive data stored in the database, such as user credentials and visitor records.

• Attackers can extract confidential information.
• They can modify or delete critical data, potentially disrupting system operations.
• Full system control may be achieved by attackers, leading to further exploitation.

Since the exploit does not require authentication, any remote attacker can attempt to exploit this vulnerability, increasing the risk.

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Detection Guidance

The CVE-2026-14766 vulnerability can be detected by testing the `searchdata` POST parameter in the `/apartment-visitor/search-result.php` file for SQL injection flaws.

Tools like sqlmap can be used to automate detection, including time-based blind and UNION-based SQL injection tests.

• Use sqlmap with a command similar to: sqlmap -u "http://target/apartment-visitor/search-result.php" --data="searchdata=test" --risk=3 --level=5 --batch
• Manually test by sending crafted POST requests with SQL injection payloads in the `searchdata` parameter and observe for database errors or unexpected responses.

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Mitigation Strategies

Immediate mitigation steps include implementing prepared statements with parameter binding to prevent SQL injection.

Strict input validation should be enforced on the `searchdata` parameter to reject malicious input.

Apply the principle of least privilege to the database accounts used by the application to limit potential damage.

Conduct regular security audits to identify and remediate similar vulnerabilities.

Since no official patch is available from the vendor, consider temporarily disabling or restricting access to the vulnerable functionality if possible.

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Compliance Impact

The SQL injection vulnerability in CodeAstro Apartment Visitor Management System 1.0 allows attackers to gain unauthorized access to sensitive data, including user credentials and visitor records. This unauthorized access and potential data extraction or modification can lead to violations of data protection regulations such as GDPR and HIPAA, which require the protection of personal and sensitive information.

Failure to properly secure the system against such vulnerabilities may result in non-compliance with these standards, as they mandate strict controls to prevent unauthorized data access and ensure data integrity and confidentiality.

Remediation steps like using prepared statements, input validation, and least privilege principles are essential to maintain compliance and protect sensitive data.

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