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CVE-2021-3427

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Date: August 25, 2022

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.

Language: Python

Severity Score

Related Resources (9)

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

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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