CVEs-PoC/2021/CVE-2021-20840.md

### [CVE-2021-20840](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20840)
![](https://img.shields.io/static/v1?label=Product&message=Booking%20Package%20-%20Appointment%20Booking%20Calendar%20System&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=versions%20prior%20to%201.5.11%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Cross-site%20scripting&color=brightgreen)

### Description

Cross-site scripting vulnerability in Booking Package - Appointment Booking Calendar System versions prior to 1.5.11 allows a remote attacker to inject an arbitrary script via unspecified vectors.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/20142995/nuclei-templates