Vulnerability in Newsletter – Send awesome emails from WordPress — CVE-2026-90981

What to do now

Update Newsletter – Send awesome emails from WordPress to 9.3.9 or later.

Affected versions

• Everything up to and including 9.3.8

The Newsletter – Send awesome emails from WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'nn' parameter in all versions up to, and including, 9.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation requires the victim to be a logged-in administrator, as the antibot check auto-passes for authenticated users, routing the unsanitized payload through the administrator-visible output branch of dienow().

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/44b3b015-2482-4b80-b208-73f1abe21b27?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/44b3b015-2482-4b80-b208-73f1abe21b27
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This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.