cve/2021/CVE-2021-23807.md

### [CVE-2021-23807](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23807)
![](https://img.shields.io/static/v1?label=Product&message=jsonpointer&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%205.0.0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Prototype%20Pollution&color=brighgreen)

### Description

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

### POC

#### Reference
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273
- https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ChamalBandara/CVEs
- https://github.com/dellalibera/dellalibera