WordPress security changelog
HIGH CVE-2026-54840 Deferred

Newsletters: A security weakness

Newsletters is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is n/a through 4.13.

CVE / CNA score 7.3 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Newsletters
Plugin slug
newsletters-lite
Affected
n/a through 4.13
Safe version
4.14
Published
Jun 26, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Jun 26, 2026 and is one of 27 known issues for this plugin.

Update, patch or deactivate.

Update Newsletters to 4.14 or later, 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.

Technical description

Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.

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

Primary and upstream sources