CVE-2021-32157 Cross-site scripting in n/a

Critical 9.6 Published 11 Apr 2022 Updated 3 Aug 2024

An attacker can execute arbitrary scripts in the context of other users via the Scheduled Cron Jobs feature in Webmin.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-32157?

CVE-2021-32157 is a critical cross-site scripting vulnerability in Webmin Webmin, published on 11 Apr 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A Cross-Site Scripting (XSS) vulnerability exists in Webmin 1.973 via the Scheduled Cron Jobs feature.

Weakness: CWE-79

Which versions are affected by CVE-2021-32157?

It affects 1 product.

Products include Webmin Webmin.

How do I fix CVE-2021-32157?

No fix has been published for CVE-2021-32157 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-32157 being exploited?

There is no known exploitation of CVE-2021-32157 in the wild and no public exploit code.

Public exploit code: 2 proofs of concept on GitHub.

All Webmin Webmin vulnerabilities

Sources

Also known as GHSA-mpx2-gc6v-g7g7.