Unauthenticated Order Content Disclosure in J2Store Joomla Extension

Executive Summary

This vulnerability affects the J2Store Joomla extension versions 1.0.0-3.3.20, 4.0.0-4.0.20, and 4.1.0-4.1.5. An unauthenticated attacker can view sensitive order details by supplying any order_id as a query parameter, which displays the full checkout confirmation page including line items, prices, and totals.

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Detection Guidance

To detect this vulnerability, monitor network traffic for unauthorized access to order confirmation pages. Check server logs for repeated requests to URLs containing 'order_id' parameters without authentication. Use tools like grep to search logs for patterns like 'order_id=' in GET requests.

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Impact Analysis

This vulnerability allows unauthorized access to confidential order information such as customer names, order contents, prices, and totals. Attackers could exploit it to steal sensitive business or customer data without authentication.

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Compliance Impact

This vulnerability could lead to unauthorized disclosure of sensitive order data, including prices and line items, which may violate GDPR (if personal data is exposed) and HIPAA (if protected health information is involved).

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Mitigation Strategies

Immediately update J2Store to the latest patched version. If an update is unavailable, restrict access to order confirmation pages by implementing authentication requirements. Review server logs for signs of exploitation and block suspicious IP addresses.

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