### [CVE-2021-29451](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29451)
![](https://img.shields.io/static/v1?label=Product&message=Portofino&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D%205.0.0%2C%20%3C%205.2.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=%7B%22CWE-347%22%3A%22Improper%20Verification%20of%20Cryptographic%20Signature%22%7D&color=brightgreen)

### Description

Portofino is an open source web development framework. Portofino before version 5.2.1 did not properly verify the signature of JSON Web Tokens. This allows forging a valid JWT. The issue will be patched in the upcoming 5.2.1 release.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon