CVE-2025-50484 is a vulnerability identified in the PHPGurukul Small CRM version 3.0, specifically in the /crm/change-password.php component. The issue stems from improper session invalidation during the password change process. When a user changes their password, the application fails to properly invalidate the existing session tokens or cookies associated with the user session. This flaw allows an attacker who has access to a valid session token prior to the password change to continue using that session token to impersonate the legitimate user. Essentially, this vulnerability enables session hijacking attacks, where an attacker can maintain unauthorized access to a user account even after the password has been changed. The vulnerability does not require user interaction beyond the attacker having access to a valid session token, which could be obtained through other means such as network interception, cross-site scripting (XSS), or physical access. No CVSS score has been assigned yet, and there are no known exploits in the wild at the time of publication. The lack of a patch or mitigation guidance from the vendor further increases the risk for users of this CRM software. Improper session invalidation is a critical security flaw because it undermines the fundamental security assumption that changing a password should terminate all active sessions, forcing re-authentication. Attackers exploiting this vulnerability could gain persistent unauthorized access to sensitive customer relationship management data, including personal and business information stored within the CRM system.

For European organizations using PHPGurukul Small CRM v3.0, this vulnerability poses a significant risk to the confidentiality and integrity of customer data and internal business information. CRM systems often contain sensitive personal data protected under GDPR, including contact details, transaction histories, and communication logs. Unauthorized persistent access via session hijacking could lead to data breaches, regulatory fines, reputational damage, and loss of customer trust. Additionally, attackers could manipulate CRM data, causing operational disruptions or fraudulent activities. Since the vulnerability allows session hijacking without requiring re-authentication, attackers can maintain access even after password resets, complicating incident response and remediation efforts. The absence of known exploits currently limits immediate widespread impact, but the vulnerability’s nature makes it a prime target for attackers once exploit code becomes available. European organizations with limited security monitoring or those relying heavily on this CRM software without additional session management controls are particularly vulnerable.

Organizations should immediately assess their use of PHPGurukul Small CRM v3.0 and prioritize upgrading or patching once a vendor fix is released. In the absence of an official patch, implement compensating controls such as enforcing server-side session invalidation upon password changes by customizing the application code or using web application firewalls (WAF) to detect and block suspicious session reuse. Additionally, enforce multi-factor authentication (MFA) to reduce the risk of session hijacking leading to account compromise. Monitor session activity logs for anomalies such as concurrent sessions from different IP addresses or user agents. Educate users to log out completely after password changes and avoid using shared or insecure networks. Network-level protections like TLS encryption should be ensured to prevent session token interception. Finally, conduct regular security assessments and penetration testing focused on session management to identify and remediate similar issues proactively.