What is CVE-2026-100109?

CVE-2026-100109 is a critical-severity vulnerability in Security For Woocommerce, classified under Missing Authorization. CVSS score: 9.8/10. Published 2026-11-05.

How severe is CVE-2026-100109?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Security For Woocommerce

CVE-2026-100109

The Security For WooCommerce WordPress plugin from 1.0.10 to 1.0.16 does not perform capability checks when creating users through an action available to unauthenticated visitors, and lets the caller choose the new account's role, allowing unauthenticated attackers to create administrator accounts and take over the site.

Vulnerability class: Broken Access Control

Published 2026-11-05 · last modified 2026-11-05.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Security For Woocommerce

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

wpscan.com/vulnerability/b4d26eb3-ab32-456e-9f69-9ab300fdf44c/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-100109?: CVE-2026-100109 is a critical-severity vulnerability in Security For Woocommerce, classified under Missing Authorization. CVSS score: 9.8/10. Published 2026-11-05.
How severe is CVE-2026-100109?: Critical severity. CVSS v3 base score is 9.8 out of 10.