A session invalidation vulnerability in PHPGurukul Car Rental Project v3.0 allows unauthenticated attackers to perform session hijacking, posing a high risk to user account integrity.

The application fails to properly invalidate sessions within the /carrental/update-password.php script. This flaw allows an unauthenticated attacker to hijack active user sessions, potentially gaining unauthorized access to user accounts.

Successful exploitation of this vulnerability permits unauthorized access to sensitive user accounts, which can lead to the compromise of personal information and unauthorized administrative actions within the application. Given the CVSS score of 7.1, this is considered a high-severity issue that could result in significant reputational damage and loss of user trust if exploited to gain control over user sessions.

Immediate Action: Since no official patch is currently available, administrators should restrict access to the vulnerable /carrental/update-password.php endpoint or disable the affected functionality until a vendor update is released.

Proactive Monitoring: Security teams should monitor web server access logs for anomalous patterns or unauthorized requests directed at the update-password.php file.

Compensating Controls: Deploy a Web Application Firewall (WAF) rule to inspect and block suspicious traffic patterns targeting this specific endpoint to mitigate the risk of session hijacking.

Public Exploit Available: Yes, a public proof-of-concept exists, attributed to the security researcher's write-up referenced in the CVE record.

This vulnerability presents a significant risk due to the potential for session hijacking, which bypasses standard authentication controls. Organizations utilizing PHPGurukul Car Rental Project v3.0 must prioritize the implementation of compensating controls or network-level restrictions immediately. We advise monitoring vendor channels closely for the release of an official security patch and applying it without delay once available.