CVE-2026-3018 HIGH

CVE-2026-3018: Newsletters <= 4.13 - Unauthenticated SQL Injection via wpmlsubscriber_id Parameter

Vendor Contrid
Product Newsletters
Weakness CWE-89 · SQLi
Published June 10, 2026
Last update June 10, 2026
View on NVD All CVEs

CVSS base score

7.5/10
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:U/C:H/I:N/A:N

What the vulnerability does

01Description

The Newsletters plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpmlsubscriber_id’ parameter in all versions up to, and including, 4.13 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Explanation of Vulnerability in Simple Terms

02Summary

Contrid Newsletters versions 4.13 and earlier contain a SQL injection vulnerability in database query handling. An attacker with network access can craft malicious input to extract sensitive data from the site's database without authentication. The vulnerability affects confidentiality but not data integrity or availability.

What an attacker can do

03Attacker Capabilities

Read sensitive data from the site's database, including user information and configuration details.

Potential impact on your site

04Site Impact

Attackers can extract user data, email addresses, and other database contents without logging in.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated