CVEs-PoC/2021/CVE-2021-20727.md

### [CVE-2021-20727](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20727)
![](https://img.shields.io/static/v1?label=Product&message=Zettlr&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=from%200.20.0%20to%201.8.8%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Cross-site%20scripting&color=brightgreen)

### Description

Cross-site scripting vulnerability in Zettlr from 0.20.0 to 1.8.8 allows an attacker to execute an arbitrary script by loading a file or code snippet containing an invalid iframe into Zettlr.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cve-scores