CVE-2018-18694 Cross-site scripting in n/a

Medium 4.8 Published 26 Oct 2018 Updated 16 Sep 2024

Authenticated administrators can inject stored XSS via extensionless files in Monstra CMS, potentially leading to code execution or account takeover.

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

What is CVE-2018-18694?

CVE-2018-18694 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Oct 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

admin/index.php?id=filesmanager in Monstra CMS 3.0.4 allows remote authenticated administrators to trigger stored XSS via JavaScript content in a file whose name lacks an extension. Such a file is interpreted as text/html in certain cases.

Weakness: CWE-79

Which versions are affected by CVE-2018-18694?

It affects 1 product.

Products include Monstra Monstra.

How do I fix CVE-2018-18694?

No fix has been published for CVE-2018-18694 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-2018-18694 being exploited?

There is no known exploitation of CVE-2018-18694 in the wild and no public exploit code.

Sources

Also known as GHSA-x665-x9vv-q832.