### [CVE-2021-3757](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3757)
![](https://img.shields.io/static/v1?label=Product&message=immerjs%2Fimmer&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%3D%209.0.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-1321%20Improperly%20Controlled%20Modification%20of%20Object%20Prototype%20Attributes%20('Prototype%20Pollution')&color=brighgreen)

### Description

immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

### POC

#### Reference
- https://huntr.dev/bounties/23d38099-71cd-42ed-a77a-71e68094adfa

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/broxus/ever-wallet-browser-extension
- https://github.com/broxus/ever-wallet-browser-extension-old