CVE-2021-3427: Deluge Web-UI vulnerable to XSS through a crafted torrent file

August 27, 2022 (updated September 16, 2024)

The Deluge Web-UI is vulnerable to cross-site scripting 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.

References

dev.deluge-torrent.org/ticket/3459
github.com/advisories/GHSA-5c8p-qhch-qhx6
github.com/deluge-torrent/deluge
github.com/pypa/advisory-database/tree/main/vulns/deluge/PYSEC-2022-256.yaml
groups.google.com/g/deluge-dev/c/e5zh7wT0rEg
nvd.nist.gov/vuln/detail/CVE-2021-3427
security.gentoo.org/glsa/202210-07

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