Exposure of Sensitive Information to an Unauthorized Actor
cross-env.js was a malicious module published with the intent to hijack environment variables. It has been unpublished by npm.
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.