CVE-2024-43793 Halo's editor has a stored XSS vulnerability

Medium 6.3 Published 11 Sep 2024 Updated 11 Sep 2024

Attackers can inject malicious scripts into Halo's editor, leading to Cross-Site Scripting attacks against users.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-43793?

CVE-2024-43793 is a medium-severity cross-site scripting vulnerability in halo-dev halo, published on 11 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Halo is an open source website building tool. A security vulnerability has been identified in versions prior to 2.19.0 of the Halo project. This vulnerability allows an attacker to execute malicious scripts in the user's browser through specific HTML and JavaScript code, potentially leading to a Cross-Site Scripting (XSS) attack. This vulnerability is fixed in 2.19.0.

Weakness: CWE-79

Which versions are affected by CVE-2024-43793?

It affects 1 product.

Products include Halo Halo.

How do I fix CVE-2024-43793?

No fix has been published for CVE-2024-43793 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-2024-43793 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-43793 exists.

Sources

Also known as GHSA-28x9-hppj-m537.