Unauthenticated Broken Authentication in Email Marketing for WooCommerce by Omnisend
CVE-2026-42668

7.5HIGH

Key Information:

Vendor

WordPress
Status
Email Marketing For WooCommerce By Omnisend
Vendor
CVE Published:
15 June 2026

What is CVE-2026-42668?

A vulnerability exists in Email Marketing for WooCommerce by Omnisend, allowing unauthenticated users to exploit broken authentication mechanisms. This impacts versions up to 1.18.0, leading to unauthorized access and potential data breaches. It is crucial for users and administrators to update to the latest versions to mitigate risks associated with this flaw.

Affected Version(s)

Email Marketing for WooCommerce by Omnisend <= 1.18.0

References

https://patchstack.com/database/wordpress/plugin/omnisend...
vdb-entry

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

0xzenko | Patchstack Bug Bounty Program
.