CVE-2026-42668

HIGH 7.5

WordPress Email Marketing for WooCommerce by Omnisend plugin <= 1.18.0 - Broken Authentication vulnerability

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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

CWE	CWE-288
Vendor	omnisend
Product	email marketing for woocommerce by omnisend
Published	Jun 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Omnisend / Email Marketing for WooCommerce by Omnisend

n/a ≤ 1.18.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/omnisend-connect/vulnerability/wordpress-email-marketing-for-woocommerce-by-omnisend-plugin-1-18-0-broken-authentication-vulnerability?_s_id=cve

Credits

0xzenko | Patchstack Bug Bounty Program