What is the severity of CVE-2024-56328?

CVE-2024-56328 has been classified as a high severity vulnerability due to the potential for arbitrary JavaScript execution on users' browsers.

How do I fix CVE-2024-56328?

To mitigate CVE-2024-56328, ensure that you update to the latest version of Discourse where the issue has been patched.

Who is affected by CVE-2024-56328?

Sites running Discourse with Content Security Policy (CSP) disabled are vulnerable to CVE-2024-56328.

What is the impact of CVE-2024-56328?

An attacker exploiting CVE-2024-56328 can execute malicious JavaScript on the browsers of users visiting an affected Discourse site.

Can I still use Discourse if I have CVE-2024-56328?

It is recommended to enable CSP or update to the latest Discourse version to safely use the platform and avoid CVE-2024-56328.

Vulnerability/
CVE-2024-56328

medium

6.5

CWE

4/2/2025

CVE-2024-56328: HTMLi(XSS without CSP) via Onebox urls in Discourse

First published: Tue Feb 04 2025(Updated: )

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by posting a maliciously crafted onebox url. This issue only affects sites with CSP disabled. This problem has been patched in the latest version of Discourse. Users are advised to upgrade. Users unable to upgrade should enable CSP, disable inline Oneboxes globally, or allow specific domains for Oneboxing.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Discourse Discourse

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Reference Links

https://github.com/discourse/discourse/security/advisories/GHSA-j855-mhxj-x6vg

Frequently Asked Questions

What is the severity of CVE-2024-56328?
CVE-2024-56328 has been classified as a high severity vulnerability due to the potential for arbitrary JavaScript execution on users' browsers.
How do I fix CVE-2024-56328?
To mitigate CVE-2024-56328, ensure that you update to the latest version of Discourse where the issue has been patched.
Who is affected by CVE-2024-56328?
Sites running Discourse with Content Security Policy (CSP) disabled are vulnerable to CVE-2024-56328.
What is the impact of CVE-2024-56328?
An attacker exploiting CVE-2024-56328 can execute malicious JavaScript on the browsers of users visiting an affected Discourse site.
Can I still use Discourse if I have CVE-2024-56328?
It is recommended to enable CSP or update to the latest Discourse version to safely use the platform and avoid CVE-2024-56328.

collector/mitre-cve
source/MITRE
agent/weakness
agent/title
agent/references
agent/first-publish-date
agent/description
agent/type
agent/guess-ai
agent/software-canonical-lookup
agent/softwarecombine
collector/nvd-api
source/NVD
agent/severity
agent/last-modified-date
agent/author
agent/source
agent/tags
agent/event
vendor/discourse
canonical/discourse discourse

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