What is CVE-2026-19709?

CVE-2026-19709 is a medium-severity vulnerability in Membership For Woocommerce, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-08-19.

How severe is CVE-2026-19709?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Membership For Woocommerce

CVE-2026-19709

The Membership For WooCommerce WordPress plugin before 3.1.2 does not check that an API consumer secret has actually been generated before comparing it against the one supplied in a request, allowing unauthenticated attackers to reach its REST routes and disclose any user's membership plan details on sites where the API has been enabled but no keys were ever generated.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Unknown Membership For Woocommerce

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-19709?: CVE-2026-19709 is a medium-severity vulnerability in Membership For Woocommerce, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-08-19.
How severe is CVE-2026-19709?: Medium severity. CVSS v3 base score is 5.3 out of 10.