CVE-2021-42970 Cross-site scripting in n/a

Medium 6.1 Published 29 Mar 2022 Updated 4 Aug 2024

An XSS vulnerability in cxuucms allows attackers to inject malicious scripts via the feedback post image URL parameter.

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-2021-42970?

CVE-2021-42970 is a medium-severity cross-site scripting vulnerability in n/a, published on 29 Mar 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

Cross Site Scripting (XSS) vulnerability exists in cxuucms v3 via the imgurl of /feedback/post/ content parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-42970?

It affects 1 product.

Products include Cxuu Cxuucms.

How do I fix CVE-2021-42970?

No fix has been published for CVE-2021-42970 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-2021-42970 being exploited?

There is no known exploitation of CVE-2021-42970 in the wild and no public exploit code.

Sources

Also known as GHSA-3h32-v6f3-9q66.