Vulnerability in Omnisend Email Marketing For Woocommerce By

CVE-2026-42668

Unauthenticated Broken Authentication in Email Marketing for WooCommerce by Omnisend <= 1.18.0 versions.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% 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-2026-42668: held from 0.004 to 0.005.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-42668?
CVE-2026-42668 is a high-severity vulnerability in Omnisend Email Marketing For Woocommerce By, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-06-15.
How severe is CVE-2026-42668?
High severity. CVSS v3 base score is 7.5 out of 10.