CVE-2021-45787 Cross-site scripting in n/a

Medium 5.4 Published 16 Mar 2022 Updated 4 Aug 2024

Attackers can inject malicious scripts via video name and remarks fields in Maccms, 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-2021-45787?

CVE-2021-45787 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

There is a stored Cross Site Scripting (XSS) vulnerability in maccms v10 through adding videos. XSS code can be inserted at parameter positions including name and remarks.

Weakness: CWE-79

Which versions are affected by CVE-2021-45787?

It affects 1 product.

Products include Maccms Maccms.

How do I fix CVE-2021-45787?

No fix has been published for CVE-2021-45787 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-2021-45787 being exploited?

There is no known exploitation of CVE-2021-45787 in the wild and no public exploit code.

Sources

Also known as GHSA-42r2-7h69-m773.