CVE-2023-30606CWE-732

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

Medium · published April 18, 2023

CVSS v3.1
4.2
EPSS
0%
Percentile
31.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00388 · 31.7th percentile
Weakness
CWE-732 · Incorrect Permission Assignment for Critical Resource
Published
2023-04-18T21:36Z
EPSS history
Timeline
  • 18 APR 21:36Z
    Multisite denial of service through unsanitized dynamic dispatch to SiteSetting in Discourse
    cvelistv5