CVE-2026-3018: Newsletters <= 4.13 - Unauthenticated SQL Injection via wpmlsubscriber_id Parameter
The Newsletters plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpmlsubscriberid’ 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-3018?
CVE-2026-3018 has a severity rating of high, with a score of 7.5.
How do I fix CVE-2026-3018?
To fix CVE-2026-3018, update the Newsletters plugin to version 4.14 or later.
What type of vulnerability is CVE-2026-3018?
CVE-2026-3018 is a SQL Injection vulnerability that allows unauthenticated users to execute malicious SQL queries.
What software is affected by CVE-2026-3018?
CVE-2026-3018 affects the Newsletters plugin for WordPress in all versions up to and including 4.13.
What impact does CVE-2026-3018 have on my website?
Exploitation of CVE-2026-3018 can lead to unauthorized access to database information, compromising website security.