---
id: CVE-2026-16264
title: >-
  The Newsletters WordPress plugin before 4.18.1 does not perform an ownership
  check on some of its subscriber management actions, and issues a management
  session to unauthenticated visitors on request, allowing attackers to read any
  subsc…
summary: >-
  The Newsletters WordPress plugin before 4.18.1 does not perform an ownership
  check on some of its subscriber management actions, and issues a management
  session to unauthenticated visitors on request, allowing attackers to read any
  subsc…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-639
product: Newsletters
affected:
  - Newsletters < 4.18.1
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:13:31.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-16264'
references:
  - url: 'https://wpscan.com/vulnerability/0dd1de2d-e9bb-4c42-a78b-2643d43dfed6/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00194
epssPercentile: 0.08021
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-23T10:45:35.602362Z'
ingestedAt: '2026-09-23T06:17:57.880Z'
---

## Overview

The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber management actions, and issues a management session to unauthenticated visitors on request, allowing attackers to read any subscriber's personal data and overwrite any subscriber's record including their email address.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.