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AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress <= 11.0.5 — Unauthenticated Remote Code Execution

CVE-2026-94389Published · Updated

Action summary

Affected: ≤11.0.5Update to 11.1.0 or newer

All remediation steps
Watch plugin
Severity
Critical9.8
CVSS
9.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-94 Improper Control of Generation of Code
Required access
No account needed
Exploit prediction (EPSS)
0.4% chance in 30 days39th percentile
CISA KEV
Not listed
On this page8

Am I affected?

AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress acymailing

  1. Affected≤ 11.0.5
  2. Patched in11.1.0

Update to 11.1.0 or newer.

You are affected if you run ≤ 11.0.5. Version 11.1.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 11.1.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to rpgsec.

The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 11.0.5. This is due to insufficient validation of user supplied input before it is executed. This makes it possible for unauthenticated attackers to execute arbitrary code on the server.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress

All 19
More vulnerabilities in AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via 'customField[]' Parameter
≤11.1.0Update to 11.1.1
CVE-2026-102562
High7.2Unauthenticated Stored Cross-Site Scripting
≤11.1.0Update to 11.1.1
CVE-2026-105318
Critical9.1Unauthenticated Arbitrary File Deletion
≤11.0.5Update to 11.1.0
CVE-2026-95588
High7.5Unauthenticated Arbitrary File Read via 'user[name]' Parameter
≤11.0.4Update to 11.0.5
CVE-2026-77807
Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting
≤10.11.1Update to 11.0.0
CVE-2026-28182

Timeline

  1. CVE published

    Severity critical, CVSS 9.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
EPSS
Exploit Prediction Scoring System by FIRST.org.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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