CVE-2024-55341 Piranha CMS Cross-site Scripting vulnerability

Medium 4.7 Published 20 Dec 2024 Updated 20 Dec 2024

Remote attackers can execute arbitrary JavaScript in user browsers via stored XSS in Piranha CMS markdown content.

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-2024-55341?

CVE-2024-55341 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Dec 2024. 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

A stored cross-site scripting (XSS) vulnerability in Piranha CMS 11.1 allows remote attackers to execute arbitrary JavaScript in the web browser of a user, by creating a page via the /manager/pages and then adding a markdown content with the XSS payload.

Weakness: CWE-79

Which versions are affected by CVE-2024-55341?

2 open source packages ship an affected version, including Piranha. It affects 1 product.

Package	Affected	Fixed in
`Piranha` NuGet	All versions to `11.1.0`	None
`Piranha` NuGet	All versions to `11.1.0`	None

Products include Dotnetfoundation Piranha Cms.

How do I fix CVE-2024-55341?

No fix has been published for CVE-2024-55341 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-2024-55341 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-55341 exists.

Sources

Also known as GHSA-mmx8-vrfg-hfmq.