CVE-2024-56328

HTMLi(XSS without CSP) via Onebox urls in Discourse

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
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 scored as a medium severity vulnerability.
How to fix CVE-2024-56328?
To fix CVE-2024-56328, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-56328 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-56328 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-56328?
CVE-2024-56328 affects discourse discourse.
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