CVE-2026-3018
Received Received - Intake
Time-Based SQL Injection in WordPress Newsletters Plugin

Publication date: 2026-06-10

Last updated on: 2026-06-10

Assigner: Wordfence

Description
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.
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Meta Information
Published
2026-06-10
Last Modified
2026-06-10
Generated
2026-06-10
AI Q&A
2026-06-10
EPSS Evaluated
N/A
NVD
CVE-2026-3018
EUVD
EUVD-2026-35997
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wpml newsletters_plugin to 4.13 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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Executive Summary

The Newsletters plugin for WordPress has a time-based SQL Injection vulnerability in the 'wpmlsubscriber_id' parameter in all versions up to and including 4.13. This occurs because the plugin does not properly escape user-supplied input and fails to adequately prepare the SQL query. As a result, unauthenticated attackers can inject additional SQL commands into existing queries.

This vulnerability allows attackers to manipulate database queries by appending malicious SQL code, potentially extracting sensitive information from the database.

Impact Analysis

This vulnerability can allow unauthenticated attackers to extract sensitive information from the database by injecting malicious SQL queries. This could lead to unauthorized data disclosure, compromising the confidentiality of user data stored in the database.

Compliance Impact

The vulnerability allows unauthenticated attackers to perform time-based SQL Injection to extract sensitive information from the database.

Such unauthorized access to sensitive data could potentially lead to non-compliance with data protection regulations like GDPR and HIPAA, which require protection of personal and sensitive information.

However, the provided information does not explicitly state the impact on compliance with these standards.

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