Executive Summary

This vulnerability in nopCommerce versions 4.70 and prior, and version 4.80.3, occurs because the application does not invalidate session cookies after a user logs out or the session ends. This means that an attacker who obtains a valid session cookie can continue to access privileged areas, such as the admin panel, even after the legitimate user has logged out, enabling session hijacking.

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Impact Analysis

The vulnerability allows an attacker to hijack a user's session by using a valid session cookie after the user has logged out. This can lead to unauthorized access to privileged endpoints, such as administrative functions, potentially resulting in data breaches, unauthorized changes, or other malicious activities within the affected nopCommerce application.

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Mitigation Strategies

Upgrade nopCommerce to a version above 4.70 that is not 4.80.3, as these versions fix the vulnerability. Until then, consider implementing additional session management controls such as invalidating session cookies on logout manually or restricting access to privileged endpoints to reduce risk.

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