CVE-2024-39210 identifies a critical arbitrary file read vulnerability in Best House Rental Management System version 1.0. The vulnerability exists due to improper validation or sanitization of the 'Page' parameter in the index.php file, which allows attackers to manipulate the parameter to read arbitrary PHP files on the server. This can lead to unauthorized disclosure of sensitive information such as configuration files, source code, credentials, or other data stored within the application directory. The vulnerability is remotely exploitable over the network without requiring authentication or user interaction, increasing its risk profile. The CVSS v3.1 score of 7.5 reflects a high severity due to the ease of exploitation (low attack complexity), no privileges required, and the potential for high confidentiality impact. The vulnerability falls under CWE-200, indicating exposure of sensitive information. Although no public exploits have been reported, the nature of the flaw makes it a prime target for attackers seeking to gather intelligence or prepare for further attacks. The lack of available patches or official fixes necessitates immediate mitigation efforts by administrators. This vulnerability highlights the importance of proper input validation and secure coding practices in web applications, especially those handling sensitive business data such as rental management systems.

The primary impact of CVE-2024-39210 is the unauthorized disclosure of sensitive information, which can compromise the confidentiality of the affected system. Attackers can leverage this vulnerability to read PHP source code files, configuration files containing database credentials, or other sensitive data stored on the server. This exposure can facilitate further attacks such as privilege escalation, data theft, or unauthorized access to backend systems. Since the vulnerability does not affect integrity or availability directly, the immediate operational disruption is limited; however, the breach of confidentiality can have severe consequences including regulatory non-compliance, reputational damage, and financial loss. Organizations using the Best House Rental Management System or similar vulnerable software are at risk of data leakage, which could impact tenants, landlords, and internal business processes. The ease of exploitation and lack of authentication requirements increase the likelihood of automated scanning and exploitation attempts, especially once public proof-of-concept exploits become available.

To mitigate CVE-2024-39210, organizations should implement the following specific measures: 1) Immediately restrict access to the affected application, especially the index.php Page parameter, by applying web application firewall (WAF) rules that block suspicious file path traversal or parameter manipulation attempts. 2) Implement strict input validation and sanitization on the Page parameter to allow only expected values or whitelist valid page identifiers, preventing arbitrary file access. 3) Configure the web server and PHP environment to disable directory listing and restrict file read permissions to only necessary files, minimizing exposure. 4) Isolate the application environment to limit the impact of potential data disclosure, including using containerization or sandboxing. 5) Monitor application logs and network traffic for unusual access patterns targeting the Page parameter or attempts to read sensitive files. 6) Engage with the software vendor or development team to obtain patches or updates addressing this vulnerability. 7) If patches are unavailable, consider temporarily disabling or replacing the vulnerable module or application until a secure version is deployed. 8) Educate developers on secure coding practices to prevent similar vulnerabilities in future releases.