Auth bypass in Simple Jwt Login

CVE-2026-19714

The Simple JWT Login WordPress plugin before 3.6.8 does not validate the audience of the Google identity tokens it accepts, allowing unauthenticated users to authenticate as any user whose email address such a token carries, up to and including an administrator. Every site with the Simple JWT Login WordPress plugin before 3.6.8's Google sign-in enabled is affected.

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: 0.004 (33.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-19714: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

  • Simple Jwt Login — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-19714?
CVE-2026-19714 is a critical-severity vulnerability in Simple Jwt Login, classified under Improper Authentication. CVSS score: 9.1/10. Published 2026-08-16.
How severe is CVE-2026-19714?
Critical severity. CVSS v3 base score is 9.1 out of 10.