Vulnerability in Webauthn Provider For Two Factor

CVE-2026-11883

The WebAuthn Provider for Two Factor WordPress plugin before 2.5.6 does not correctly validate the second-factor authentication response, allowing an attacker who already knows a user's password to bypass the two-factor authentication requirement by submitting a malformed request.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.0% 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-2026-11883: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

  • Webauthn Provider For Two Factor — versions 0

References

Frequently asked questions

What is CVE-2026-11883?
CVE-2026-11883 is a high-severity vulnerability in Webauthn Provider For Two Factor, classified under CWE-287 IMPROPER AUTHENTICATION. CVSS score: 7.2/10. Published 2026-07-01.
How severe is CVE-2026-11883?
High severity. CVSS v3 base score is 7.2 out of 10.