CVEs-PoC/2020/CVE-2020-7637.md

### [CVE-2020-7637](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7637)
![](https://img.shields.io/static/v1?label=Product&message=class-transformer&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Prototype%20Pollution&color=brighgreen)

### Description

class-transformer before 0.3.1 allow attackers to perform Prototype Pollution. The classToPlainFromExist function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

### POC

#### Reference
- https://snyk.io/vuln/SNYK-JS-CLASSTRANSFORMER-564431

#### Github
- https://github.com/Live-Hack-CVE/CVE-2020-7637