CVE-2021-45380 Cross-site scripting in n/a

Medium 6.1 Published 23 Jan 2022 Updated 4 Aug 2024

AppCMS contains a cross-site scripting vulnerability in its mobile template header, allowing attackers to inject malicious scripts.

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-2021-45380?

CVE-2021-45380 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Jan 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

AppCMS 2.0.101 has a XSS injection vulnerability in \templates\m\inc_head.php

Weakness: CWE-79

Which versions are affected by CVE-2021-45380?

It affects 1 product.

Products include Appcms Appcms.

How do I fix CVE-2021-45380?

No fix has been published for CVE-2021-45380 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-2021-45380 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45380 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-qx8q-6v87-v7f8.