Vulnerability · Published Sep 30, 2026 · Assigned by Patchstack
CVE-2026-94389WordPress AcyMailing SMTP Newsletter plugin <= 11.0.5 - Remote Code Execution (RCE) vulnerability
Critical 9.0
In plain English
A critical-severity code injection in AcyMailing SMTP Newsletter from AcyMailing Newsletter Team. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)9.0Critical
Exploit odds (30 days)0.4%top 60.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated Remote Code Execution (RCE) in AcyMailing SMTP Newsletter <= 11.0.5 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AcyMailing Newsletter Team | AcyMailing SMTP Newsletter | n/a – through 11.0.5 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H