Critical severity · published Sep 30, 2026
CVE-2026-94389
WordPress AcyMailing SMTP Newsletter plugin <= 11.0.5 - Remote Code Execution (RCE) vulnerability
9.0
CVSS
0.4%
EPSS
No
On KEV
Description
Unauthenticated Remote Code Execution (RCE) in AcyMailing SMTP Newsletter <= 11.0.5 versions.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
AcyMailing SMTP Newsletter · AcyMailing Newsletter Team
through 11.0.5 · source: vendor
Affected product
AS
AcyMailing SMTP Newsletter
AcyMailing Newsletter Team
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94389
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94389
vdb-entry
https://patchstack.com/database/wordpress/plugin/acymailing/vulnerability/wordpress-acymailing-smtp-newsletter-plugin-11-0-5-remote-code-execution-rce-vulnerability?_s_id=cve
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