CVE-2023-30606

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    CVE-2023-30606

    Published: 18 Apr 2023Last Modified: 29 Sept 2026

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

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30606.json, https://github.com/discourse/discourse/security/advisories/GHSA-jj93-w3mv-3jvv, https://nvd.nist.gov/vuln/detail/CVE-2023-30606

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- e54f52a756c032d7f35c0907b03a7dc9f2ea65e5
    Fixed -None

    Affected versions

    beta: < 3.1.0.beta3

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-30606 | CVE-DB