What is CVE-2021-43331?

CVE-2021-43331 is a vulnerability in GNU Mailman before version 2.1.36 that allows for the execution of arbitrary JavaScript for XSS through a crafted URL to the Cgi/options.py user options page.

How severe is CVE-2021-43331?

The severity of CVE-2021-43331 is medium, with a CVSS score of 6.1.

What software is affected by CVE-2021-43331?

The GNU Mailman version before 2.1.36 and Debian Linux version 9.0 are affected by CVE-2021-43331.

How can I fix CVE-2021-43331?

To fix CVE-2021-43331, upgrade GNU Mailman to version 2.1.36 or later.

Where can I find more information about CVE-2021-43331?

You can find more information about CVE-2021-43331 at the following references: [Link 1](https://bugs.launchpad.net/mailman/+bug/1949401), [Link 2](https://lists.debian.org/debian-lts-announce/2022/06/msg00011.html), [Link 3](https://mail.python.org/archives/list/mailman-announce@python.org/message/I2X7PSFXIEPLM3UMKZMGOEO3UFYETGRL/)

Vulnerability/
CVE-2021-43331

medium

6.1

CWE

12/11/2021

4/8/2024

CVE-2021-43331: XSS

First published: Fri Nov 12 2021(Updated: )

In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page can execute arbitrary JavaScript for XSS.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
GNU Mailman	<2.1.36
Debian Debian Linux	=9.0

Remedy

https://bugs.launchpad.net/mailman/+bug/1949401

Remedy

https://mail.python.org/archives/list/mailman-announce@python.org/message/I2X7PSFXIEPLM3UMKZMGOEO3UFYETGRL/

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is CVE-2021-43331?
CVE-2021-43331 is a vulnerability in GNU Mailman before version 2.1.36 that allows for the execution of arbitrary JavaScript for XSS through a crafted URL to the Cgi/options.py user options page.
How severe is CVE-2021-43331?
The severity of CVE-2021-43331 is medium, with a CVSS score of 6.1.
What software is affected by CVE-2021-43331?
The GNU Mailman version before 2.1.36 and Debian Linux version 9.0 are affected by CVE-2021-43331.
How can I fix CVE-2021-43331?
To fix CVE-2021-43331, upgrade GNU Mailman to version 2.1.36 or later.
Where can I find more information about CVE-2021-43331?
You can find more information about CVE-2021-43331 at the following references: [Link 1](https://bugs.launchpad.net/mailman/+bug/1949401), [Link 2](https://lists.debian.org/debian-lts-announce/2022/06/msg00011.html), [Link 3](https://mail.python.org/archives/list/mailman-announce@python.org/message/I2X7PSFXIEPLM3UMKZMGOEO3UFYETGRL/)

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agent/severity
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agent/author
agent/event
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agent/type
agent/description
agent/remedy
agent/last-modified-date
agent/first-publish-date
agent/softwarecombine
agent/tags
collector/mitre-cve
source/MITRE
vendor/gnu
canonical/gnu mailman
vendor/debian
canonical/debian debian linux
version/debian debian linux/9.0

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