### [CVE-2021-23413](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23413)
![](https://img.shields.io/static/v1?label=Product&message=jszip&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Denial%20of%20Service%20(DoS)&color=brightgreen)

### Description

This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.

### POC

#### Reference
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1251499
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1251498
- https://snyk.io/vuln/SNYK-JS-JSZIP-1251497

#### Github
No PoCs found on GitHub currently.