{"id":"BIT-discourse-2023-30606","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.","aliases":["CVE-2023-30606","GHSA-jj93-w3mv-3jvv"],"modified":"2026-09-08T08:46:11.386881499Z","published":"2024-03-06T10:57:34.776Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*","cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*","cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.1.0:beta1:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.1.0:beta2:*:*:beta:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-jj93-w3mv-3jvv"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30606"}],"affected":[{"package":{"name":"discourse","ecosystem":"Bitnami","purl":"pkg:bitnami/discourse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.0"}]},{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"3.0.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2023-30606.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}