CVE-2025-50488 is a high-severity vulnerability identified in the PHPGurukul Online Library Management System version 3.0. The flaw resides in the /library/change-password.php component, where improper session invalidation occurs. Specifically, after a user changes their password, the system fails to properly invalidate the existing session tokens or cookies associated with the user session. This improper session management allows an attacker to perform a session hijacking attack by reusing or stealing the session identifier that should have been invalidated upon password change. The vulnerability is classified under CWE-613, which relates to insufficient session expiration or invalidation. The CVSS v3.1 base score is 7.1, indicating a high severity level. The attack vector is network-based (AV:N), requiring no privileges (PR:N), but does require user interaction (UI:R), such as tricking the user to perform the password change or to be logged in during the attack. The impact on confidentiality is high as attackers can hijack sessions and gain unauthorized access to user accounts. Integrity impact is low as the attacker may not be able to modify data directly through this flaw, and availability impact is none. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability affects the PHPGurukul Online Library Management System v3.0, a web-based application used for managing library resources and user accounts, typically deployed by educational institutions and libraries. The improper session invalidation after password changes is a critical security lapse that can lead to unauthorized access and potential data breaches if exploited.

For European organizations, particularly educational institutions, public libraries, and research centers that use the PHPGurukul Online Library Management System, this vulnerability poses a significant risk. Successful exploitation could allow attackers to hijack user sessions, potentially gaining unauthorized access to sensitive user information, borrowing records, and administrative functions. This could lead to privacy violations under GDPR, reputational damage, and operational disruptions. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to facilitate exploitation. The high confidentiality impact means sensitive personal data could be exposed, which is critical under European data protection regulations. Additionally, compromised accounts could be leveraged for further attacks within the organization's network. The lack of a patch increases the urgency for organizations to implement interim mitigations. Given the nature of the system, the threat could affect a broad user base including students, faculty, and library staff, amplifying the potential damage.

European organizations should immediately review their deployment of PHPGurukul Online Library Management System v3.0 and assess exposure. Specific mitigation steps include: 1) Implement manual session invalidation upon password changes by modifying the application code to destroy existing sessions and force re-authentication. 2) Enforce strict session management policies, including short session timeouts and secure cookie attributes (HttpOnly, Secure, SameSite). 3) Monitor user sessions for anomalies such as concurrent sessions from different IP addresses or devices. 4) Educate users about phishing and social engineering risks to reduce the likelihood of user interaction exploitation. 5) Restrict access to the change-password.php endpoint via network controls or web application firewalls (WAF) with rules to detect suspicious activity. 6) Regularly audit logs for unusual session behavior. 7) Engage with the vendor or community to obtain or develop patches and apply them promptly once available. 8) Consider multi-factor authentication (MFA) to reduce the impact of session hijacking. These targeted actions go beyond generic advice and address the specific session invalidation weakness.