{"cve":"CVE-2021-3427","nvd":{"published":"2022-08-26T16:15:08.803","modified":"2026-06-17T04:05:04.240","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://dev.deluge-torrent.org/ticket/3459","https://groups.google.com/g/deluge-dev/c/e5zh7wT0rEg","https://security.gentoo.org/glsa/202210-07","https://dev.deluge-torrent.org/ticket/3459","https://groups.google.com/g/deluge-dev/c/e5zh7wT0rEg"],"products":["deluge-torrent:deluge"],"source":"nvd","synced_at":"2026-10-19T21:35:14.992143698+00:00"},"epss":{"cve":"CVE-2021-3427","score":0.00959,"percentile":0.61506,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-5c8p-qhch-qhx6","url":"https://osv.dev/vulnerability/GHSA-5c8p-qhch-qhx6","summary":"Deluge Web-UI vulnerable to XSS through a crafted torrent file","modified":"2024-09-16T14:59:49.690231Z","packages":[{"ecosystem":"PyPI","name":"deluge","purl":"pkg:pypi/deluge","ranges":["<2.1.0"],"fixed":["2.1.0"]}]},{"id":"PYSEC-2022-256","url":"https://osv.dev/vulnerability/PYSEC-2022-256","summary":"","modified":"2023-11-08T04:06:07.630449Z","packages":[{"ecosystem":"PyPI","name":"deluge","purl":"pkg:pypi/deluge","ranges":["<2.1.0"],"fixed":["2.1.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}