CVE-2021-41432 Cross-site scripting in n/a

Medium 5.4 Published 22 Jun 2022 Updated 4 Aug 2024

Attackers can execute arbitrary JavaScript in victims' browsers via stored XSS in FlatPress blog content.

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-2021-41432?

CVE-2021-41432 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Jun 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

A stored cross-site scripting (XSS) vulnerability exists in FlatPress 1.2.1 that allows for arbitrary execution of JavaScript commands through blog content.

Weakness: CWE-79

Which versions are affected by CVE-2021-41432?

It affects 1 product.

Products include Flatpress Flatpress.

How do I fix CVE-2021-41432?

No fix has been published for CVE-2021-41432 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-2021-41432 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-41432 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-j552-6vv5-6jv4.