Auth bypass in Discourse
CVE-2022-39385
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (43.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Discourse — versions Beta: <= 2.9.0.beta11, Stable: <= 2.8.10, 2.9.0
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-gh5r-j595-qx48 (Third Party Advisory)
- github.com/discourse/discourse/commit/a414520742da8dc9dc976d4fb7b72dbd445813bb (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-39385?
- CVE-2022-39385 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 6.5/10. Published 2022-11-14.
- How severe is CVE-2022-39385?
- Medium severity. CVSS v3 base score is 6.5 out of 10.