CVE-2024-55630 DOM Clobbering leads to temporary DOS in the note viewer in Joplin

Low 3.3 Published 7 Feb 2025 Updated 10 Feb 2025

An attacker can cause a temporary denial of service in the Joplin note viewer by exploiting DOM clobbering via the name attribute.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2024-55630?

CVE-2024-55630 is a low-severity denial of service vulnerability in laurent22 joplin, published on 7 Feb 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. Joplin's HTML sanitizer allows the `name` attribute to be specified. If `name` is set to the same value as an existing `document` property (e.g. `querySelector`), that property is replaced with the element. This vulnerability's only known impact is denial of service. The note viewer fails to refresh until closed and re-opened with a different note. This issue has been addressed in version 3.2.8 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-20

Which versions are affected by CVE-2024-55630?

It affects 1 product.

Products include Joplin Project Joplin.

How do I fix CVE-2024-55630?

No fix has been published for CVE-2024-55630 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-55630 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-55630 exists.

Sources

Also known as GHSA-5cch-jr52-qffh.