Auth bypass in Discourse

CVE-2019-1020018

Discourse before 2.3.0 and 2.4.x before 2.4.0.beta3 lacks a confirmation screen when logging in via an email link.

Vulnerability class: Broken Authentication

EPSS: 0.010 (60.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Discourse — versions 2.4.0
N/a Discourse — versions < 2.3.0, 2.4.0.beta1, 2.4.0.beta2

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

josh@bress.net (Patch, Third Party Advisory, x_refsource_MISC)
josh@bress.net (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-1020018?: CVE-2019-1020018 is a high-severity vulnerability in Discourse, classified under Improper Authentication. CVSS score: 7.3/10. Published 2019-07-29.
How severe is CVE-2019-1020018?: High severity. CVSS v3 base score is 7.3 out of 10.