CVE-2018-16489
Prototype Pollution in just-extend
9.8
CRITICAL
CVSS 3.1
EPSS 0.44%
Description
Versions of `just-extend` before 4.0.0 are vulnerable to prototype pollution. Provided certain input `just-extend` can add or modify properties of the `Object` prototype. These properties will be present on all objects. ## Recommendation Update to version `4.0.0` or later.
How to fix CVE-2018-16489
To remediate CVE-2018-16489, upgrade the affected package to a fixed version below.
- —upgrade to 4.0.0 or later
Is CVE-2018-16489 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |