CVE-2020-7637
Prototype pollution in class-transformer
5.3
MEDIUM
CVSS 3.1
EPSS 0.32%
Description
class-transformer through 0.2.3 is vulnerable to Prototype Pollution. The 'classToPlainFromExist' function could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.
How to fix CVE-2020-7637
To remediate CVE-2020-7637, upgrade the affected package to a fixed version below.
- npm/class-transformer—upgrade to 0.3.1 or later
Is CVE-2020-7637 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |