CVE-2020-20691 File upload in n/a

Medium 6.5 Published 27 Sep 2021 Updated 4 Aug 2024

Attackers can execute arbitrary scripts by uploading crafted HTML files, bypassing extension filters in Monstra CMS.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-20691?

CVE-2020-20691 is a medium-severity vulnerability in n/a, published on 27 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in Monstra CMS v3.0.4 allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.

Weakness: CWE-434

Which versions are affected by CVE-2020-20691?

It affects 1 product.

Products include Monstra Monstra Cms.

How do I fix CVE-2020-20691?

No fix has been published for CVE-2020-20691 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-20691 being exploited?

There is no known exploitation of CVE-2020-20691 in the wild and no public exploit code.

Sources

Also known as GHSA-2648-mr6g-p443.