Is CVE-2026-94389 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-94389 being exploited in the wild.

How severe is CVE-2026-94389?

Critical severity, with a CVSS score of 9, published 30 September 2026.

Which products and versions are affected?

Datasolution AcyMailing SMTP Newsletter 11.0.5 and earlier.

Is there a fix for CVE-2026-94389?

A patch was published on 2026-09-30: Patched in version 11.1.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-94389 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-94389?

Check whether you run Datasolution AcyMailing SMTP Newsletter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-94389: AcyMailing SMTP Newsletter remote code execution

CVE-2026-94389 · Severity: critical · CVSS 9 · Published 2026-09-30

AcyMailing SMTP Newsletter is a WordPress plugin for managing and sending email newsletters. An unauthenticated attacker can execute arbitrary code on the web server, giving them complete control over the website and access to all data. This allows attackers to steal customer information, install malware, or take the site offline.

Technologies: Datasolution AcyMailing SMTP Newsletter. Vendors: Datasolution.

Quick answers

Is CVE-2026-94389 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-94389 being exploited in the wild.
How severe is CVE-2026-94389?: Critical severity, with a CVSS score of 9, published 30 September 2026.
Which products and versions are affected?: Datasolution AcyMailing SMTP Newsletter 11.0.5 and earlier.
Is there a fix for CVE-2026-94389?: A patch was published on 2026-09-30: Patched in version 11.1.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-94389 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-94389?: Check whether you run Datasolution AcyMailing SMTP Newsletter at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An unauthenticated remote code execution vulnerability exists in AcyMailing SMTP Newsletter plugin versions 11.0.5 and earlier due to improper input validation in an injection attack vector. No authentication is required to exploit this vulnerability; attackers can trigger code execution via network requests. The vulnerability is patched in version 11.1.0.

Affected products

Datasolution AcyMailing SMTP Newsletter 11.0.5 and earlier

Timeline

2026-09-30: disclosed: Vulnerability published by Patchstack
2026-09-30: patched: Patched in version 11.1.0

References

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