CVE-2021-43850CWE-20

Denial of Service in discourse

Medium · published January 4, 2022

CVSS v3.1
6.8
EPSS
1%
Percentile
57.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00828 · 57.1th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2022-01-04T19:35Z
EPSS history
Timeline
  • 04 JAN 19:35Z
    Denial of Service in discourse
    cvelistv5