CVE-2026-57739 CRITICAL

CVE-2026-57739: WordPress AcyMailing SMTP Newsletter plugin <= 10.11.0 - SQL Injection vulnerability

Vendor Acymailing Newsletter Team
Product AcyMailing SMTP Newsletter
Weakness CWE-89 · SQLi
Published July 13, 2026
Last update July 13, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

What the vulnerability does

01Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in AcyMailing Newsletter Team AcyMailing SMTP Newsletter acymailing allows Blind SQL Injection.This issue affects AcyMailing SMTP Newsletter: from n/a through <= 10.11.0.

Explanation of Vulnerability in Simple Terms

02Summary

AcyMailing SMTP Newsletter versions up to 10.11.0 contain a SQL injection vulnerability that allows unauthenticated attackers to read sensitive data from the database, including user information and configuration details. The vulnerability requires no user interaction and can be exploited over the network. An attacker can also cause partial service disruption by interfering with database availability.

What an attacker can do

03Attacker Capabilities

Read sensitive data from the site's database without logging in.

Potential impact on your site

04Site Impact

Attackers can steal user data, email addresses, and site configuration from your database.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

July 13, 2026 CVE published