CVE-2021-43850

Description

Discourse is an open source platform for community discussion. In affected versions admins users can trigger a Denial of Service attack via the /message-bus/_diagnostics path. The impact of this vulnerability is greater on multisite Discourse instances (where multiple forums are served from a single application server) where any admin user on any of the forums are able to visit the /message-bus/_diagnostics path. The problem has been patched. Please upgrade to 2.8.0.beta10 or 2.7.12. No workarounds for this issue exist.

CVSS Version 3.1

nvd

CVE ID: CVE-2021-43850
Base Score: 6.8
Base Severity: MEDIUM
Vector String:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Impact Score: 4.0
Exploitability Score: 2.3

github

CVE ID: CVE-2021-43850
Base Score: 6.8
Base Severity: MEDIUM
Vector String:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
Impact Score: 4.0
Exploitability Score: 2.3

CVSS Version 2.0

nvd

CVE ID: CVE-2021-43850
Base Score: 4.0
Base Severity: MEDIUM
Vector String:AV:N/AC:L/Au:S/C:N/I:N/A:P

Refrence: NVDMITRE