CVE-2021-43850
Medium
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.
SeverityMedium
CVSS6.8
Exploit probability—
Product
Discourse
PublishedJan 4, 2022
First seenJan 4, 2022
Weakness typeCWE-20Improper input validation
How to fix
Update
- discourse discourse2.7.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| discourse discourse | v < 2.7.12, 2.8.0 | 2.7.12 |
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