CVE-2021-3427: Deluge-Torrent Deluge

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• Deluge-Torrent Deluge: before 2.1.0 (fixed in 2.1.0)

Published 2022-08-26. Last modified 2026-06-17.