Exposure of Sensitive Information to an Unauthorized Actor
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In the affected versions, parse-server LiveQuery does not remove protected fields in classes, passing them to the client. The LiveQueryController now removes protected fields from the client response. Users are advised to upgrade. Users unable t upgrade should use `Parse.Cloud.afterLiveQueryEvent` to manually remove protected fields. This issue affects versions through 4.10.12, 5.0.0-alpha.1 through to 5.2.3, and 5.3.0-alpha.1 through 5.3.0-alpha.18.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.