---
id: CVE-2026-94389
title: >-
  Unauthenticated Remote Code Execution (RCE) in AcyMailing SMTP Newsletter <=
  11.0.5 versions.
summary: >-
  Unauthenticated Remote Code Execution (RCE) in AcyMailing SMTP Newsletter <=
  11.0.5 versions.
severity: critical
cvss: 9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: AcyMailing Newsletter Team
product: acymailing
affected:
  - acymailing >= n/a <= 11.0.5
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T14:17:49.070'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94389'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/acymailing/vulnerability/wordpress-acymailing-smtp-newsletter-plugin-11-0-5-remote-code-execution-rce-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-30T13:11:31.502437Z'
ingestedAt: '2026-09-30T13:03:52.010Z'
epss: 0.00448
epssPercentile: 0.38763
---

## Overview

Unauthenticated Remote Code Execution (RCE) in AcyMailing SMTP Newsletter <= 11.0.5 versions.

## Remediation

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