CVE-2022-39385

Name: CVE-2022-39385
Creator: NVD / NIST
Published: 2022-11-14T21:15:15.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2022-39385 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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. Users are also advised to set `SiteSetting.max_invites_per_day` to 0 until the patch is installed.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.50%

38.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Discourse	Discourse	< 2.8.10	—
Discourse	Discourse	2.9.0	Beta1

References

https://github.com/discourse/discourse/commit/a414520742da8dc9dc976d4fb7b72dbd445813bbPatch, Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-gh5r-j595-qx48Third Party Advisory
https://github.com/discourse/discourse/commit/a414520742da8dc9dc976d4fb7b72dbd445813bbPatch, Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-gh5r-j595-qx48Third Party Advisory

Timeline

Published: Nov 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39385?

How severe is CVE-2022-39385?

CVE-2022-39385 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39385?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39385?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST