SARA / Free Tools / CVE / CVE-2022-39385

CVE-2022-39385 — Discourse is the an open source discussion platform

Discourse is the an open source discussion platform. In some rare cases users redeeming an invitation can be added as a participant to several private message topics that they should not be added to. They are not notified of this, it happens transparently in the background. This

CVSS
6.5 MEDIUM
EPSS
0.24% (top 52.60%)
CWE
CWE-200
Published
2022-11-14T00:00:00.000Z
Last modified
2025-04-23T16:37:39.344Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

01What is this vulnerability?

Discourse is the an open source discussion platform. In some rare cases users redeeming an invitation can be added as a participant to several private message topics that they should not be added to. They are not notified of this, it happens transparently in the background. This issue has been resolved in commit `a414520742` and will be included in future releases. Users are advised to upgrade…

02Affected products

VendorProductVersions
discoursediscourseStable: <= 2.8.10, Beta: <= 2.9.0.beta11

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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