취약점

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Source: amazon-inspector (9b35fd7baa18320cbcaf6fbb6fbabb6139dd48264cd1f09d0461a8877c1f873f)

On npm install, the package's preinstall hook runs node dist/index.d.js. That file base64-decodes a payload which fetches JavaScript from https://everydaynodechecker-39143n.vercel.app/api/key?mem=master and passes the response to eval. The eval identifier is obfuscated by constructing it from character codes [101,118,97,104] and invoking it via globalThis[tag](text) rather than appearing as a literal in source. The result is arbitrary attacker-controlled JavaScript execution on the installer's machine at install time, from an anonymous third-party host. The package name mimics common React calendar component naming and ships empty author metadata, with a minimal dist tree whose only auto-executed code is the remote-eval dropper.

Source: ossf-package-analysis (861d1a7aff6fd0e70699aedba04e28c0af286ad7c07d64a48bfbecdb54dbdcf2)

The OpenSSF Package Analysis project identified 'react-editable-calendar' @ 0.1.7 (npm) as malicious.

It is considered malicious because:

• The package executes one or more commands associated with malicious behavior.