CVE-2021-35490 Cross-site scripting in n/a

Medium 5.4 Published 15 Dec 2021 Updated 4 Aug 2024

An attacker can inject malicious scripts via quick commands in Thruk, potentially leading to session hijacking or code execution.

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

What is CVE-2021-35490?

CVE-2021-35490 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Dec 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Thruk before 2.44 allows XSS for a quick command.

Weakness: CWE-79

Which versions are affected by CVE-2021-35490?

It affects 1 product.

Products include Thruk Thruk.

How do I fix CVE-2021-35490?

No fix has been published for CVE-2021-35490 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-2021-35490 being exploited?

There is no known exploitation of CVE-2021-35490 in the wild and no public exploit code.

Sources

Also known as GHSA-3845-9fvj-j226.