CVE-2023-30606

Multisite denial of service through unsanitized dynamic dispatch to SiteSetting in Discourse

Description

Discourse is an open source platform for community discussion. In affected versions a user logged as an administrator can call arbitrary methods on the `SiteSetting` class, notably `#clear_cache!` and `#notify_changed!`, which when done on a multisite instance, can affect the entire cluster resulting in a denial of service. Users not running in multisite environments are not affected. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

4.2
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Third-Party Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-jj93-w3mv-3jvv third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-30606?
CVE-2023-30606 has been scored as a medium severity vulnerability.
How to fix CVE-2023-30606?
To fix CVE-2023-30606, 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-2023-30606 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-30606 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-2023-30606?
CVE-2023-30606 affects discourse discourse.
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