CVE-2021-3427

Public Exploit

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.46%
Vendor Advisory gentoo.org Vendor Advisory deluge-torrent.org
Affected: n/a Deluge-web
Published at:
Updated at:

References

Link Tags
https://dev.deluge-torrent.org/ticket/3459 issue tracking patch vendor advisory exploit
https://groups.google.com/g/deluge-dev/c/e5zh7wT0rEg issue tracking mailing list exploit third party advisory
https://security.gentoo.org/glsa/202210-07 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3427?
CVE-2021-3427 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3427?
To fix CVE-2021-3427, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3427 being actively exploited in the wild?
It is possible that CVE-2021-3427 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3427?
CVE-2021-3427 affects n/a Deluge-web.
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