CVE-2023-38704
import-in-the-middle has unsanitized user controlled input in module generation
Description
### Impact The `import-in-the-middle` loader works by generating a wrapper module on the fly. The wrapper uses the module specifier to load the original module and add some wrapping code. It allows for remote code execution in cases where an application passes user-supplied input directly to an import() function. ### Patches This vulnerability has been patched in `import-in-the-middle` version 1.4.2 ### Workarounds * Do not pass any user-supplied input to `import()`. Instead, verify it against a set of allowed values. * If using `import-in-the-middle` and support for EcmaScript Modules is not needed, ensure that none of the following options are set (either via command-line or the `NODE_OPTIONS` environment variable): ``` --loader=import-in-the-middle/hook.mjs --loader import-in-the-middle/hook.mjs ``` ### References If you have any questions or comments about this advisory, email us at [[email protected]](mailto:[email protected])
How to fix CVE-2023-38704
To remediate CVE-2023-38704, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.2 or later
Is CVE-2023-38704 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.4.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L |