Auth bypass in Discourse Discourse-Patreon
CVE-2022-39355
Discourse Patreon enables syncronization between Discourse Groups and Patreon rewards. On sites with Patreon login enabled, an improper authentication vulnerability could be used to take control of a victim's forum account. This vulnerability is patched in commit number 846d012151514b35ce42a1636c7d70f6dcee879e of the discourse-patreon plugin. Out of an abundance of caution, any Discourse accounts which have logged in with an unverified-email Patreon account will be logged out and asked to verify their email address on their next login. As a workaround, disable the patreon integration and log out all users with associated Patreon accounts.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (56.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- Discourse Discourse-Patreon — versions < 846d012151514b35ce42a1636c7d70f6dcee879e
- Discourse Patreon
Weakness classification (CWE)
References
- github.com/discourse/discourse-patreon/security/advisories/GHSA-fvj9-f67v-qpr4 (Third Party Advisory)
- github.com/discourse/discourse-patreon/commit/846d012151514b35ce42a1636c7d70f6d… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-39355?
- CVE-2022-39355 is a critical-severity vulnerability in Discourse Discourse-Patreon, classified under Improper Authentication. CVSS score: 9.1/10. Published 2022-10-26.
- How severe is CVE-2022-39355?
- Critical severity. CVSS v3 base score is 9.1 out of 10.