Authorization Bypass in MOVO Chat API Endpoints

Executive Summary

This vulnerability is an authorization bypass in MOVO through version 0.2.3. It allows authenticated users to access other users' stored objects by providing arbitrary object paths. Attackers can exploit this by sending a target's object path to specific API endpoints to read private documents or overwrite presentation blueprints.

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Detection Guidance

To detect this vulnerability, monitor API requests to /api/documents/fetch and /api/documents/save-blueprint endpoints. Check for requests with arbitrary object paths from authenticated users accessing documents not belonging to them. Review logs for unauthorized access attempts or document modifications.

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Impact Analysis

If you use MOVO through version 0.2.3, an attacker with a valid session could read your private documents or overwrite your presentation blueprints if they know your object path. This could lead to data leaks or unauthorized modifications to your content.

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Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR's data protection requirements or HIPAA's privacy rules if personal or health information is exposed. Organizations using MOVO may face compliance risks due to potential data breaches.

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Mitigation Strategies

Immediately update MOVO to a patched version beyond 0.2.3. Implement strict ownership validation for document paths in the chat-api endpoints. Restrict access to sensitive endpoints and review all user permissions. Monitor for unusual document access or modifications.

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