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.

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

EPSS: 0.008 (51.8th percentile) — read the EPSS interpretation.

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.

Affected products

Discourse Discourse-patreon — versions < 846d012151514b35ce42a1636c7d70f6dcee879e
Discourse Patreon

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

security-advisories@github.com (Third Party Advisory)
security-advisories@github.com (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.