WordPress security changelog
MEDIUM CVE-2026-11592 Deferred

Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress: A security weakness

Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress is affected by a security weakness. Exploitation requires at least contributor-level access. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 5.9.27.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress
Plugin slug
email-subscribers
Affected
<= 5.9.27
Safe version
> 5.9.27
Published
Jul 02, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Jul 02, 2026 and is one of 20 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress to a release after 5.9.27, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.9.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to overwrite plugin mail settings (from name and from email address), create audience lists, insert arbitrary contacts into those lists, create and overwrite newsletter broadcasts and post notifications, add workflows, and queue and dispatch mass email to arbitrary recipients.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

Primary and upstream sources