### [CVE-2021-3427](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3427) ![](https://img.shields.io/static/v1?label=Product&message=Deluge-web&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=Not-Known%20&color=brightgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20-%20Improper%20Neutralization%20of%20Input%20During%20Web%20Page%20Generation%20('Cross-site%20Scripting')&color=brightgreen) ### Description The Deluge Web-UI is vulnerable to XSS through a crafted torrent file. The the data from torrent files is not properly sanitised as it's interpreted directly as HTML. Someone who supplies the user with a malicious torrent file can execute arbitrary Javascript code in the context of the user's browser session. ### POC #### Reference - https://groups.google.com/g/deluge-dev/c/e5zh7wT0rEg #### Github - https://github.com/ARPSyndicate/cvemon