CVE-2022-40879 Cross-site scripting in n/a

Medium 6.1 Published 29 Sep 2022 Updated 20 May 2025

Attackers can execute arbitrary scripts in victim browsers via the errorMsg parameter in kkFileView, potentially leading to session hijacking.

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-2022-40879?

CVE-2022-40879 is a medium-severity cross-site scripting vulnerability in n/a, published on 29 Sep 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

kkFileView v4.1.0 is vulnerable to Cross Site Scripting (XSS) via the parameter 'errorMsg.'

Weakness: CWE-79

Which versions are affected by CVE-2022-40879?

It affects 1 product.

Products include Keking Kkfileview.

How do I fix CVE-2022-40879?

No fix has been published for CVE-2022-40879 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-2022-40879 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40879 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-v632-53j2-53ph.