CVE-2026-62361
Deferred Deferred - Pending Action

SQL Injection in listmonk Newsletter Manager

Publication date: 2026-07-15

Last updated on: 2026-07-16

Assigner: GitHub, Inc.

Description
listmonk is a standalone, self-hosted, newsletter and mailing list manager. Prior to 6.2.0, listmonk’s GET /api/subscribers/export endpoint injects the user-controlled query parameter into QuerySubscribersForExport in internal/core/subscribers.go without calling validateQueryTables, unlike GET /api/subscribers, allowing an authenticated user with subscribers:sql_query and subscribers:get_all to read arbitrary database tables such as users and settings and execute data-modifying PostgreSQL CTEs. This issue is fixed in version 6.2.0.

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Meta Information

Published
2026-07-15
Last Modified
2026-07-16
Generated
2026-08-05
AI Q&A
2026-07-16
EPSS Evaluated
2026-08-03
NVD
CVE-2026-62361

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
listmonk listmonk 6.2.0

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

This vulnerability affects listmonk, a self-hosted newsletter manager. An authenticated user with specific permissions can exploit the GET /api/subscribers/export endpoint to read arbitrary database tables like users and settings. This happens because the endpoint injects a user-controlled query parameter without proper validation, unlike another endpoint that does validate queries.

Detection Guidance

The vulnerability affects listmonk versions prior to 6.2.0. To detect it, check the installed version of listmonk by inspecting the application or container logs for version information. If the version is below 6.2.0, the system is vulnerable.

Impact Analysis

An attacker with access could read sensitive data such as user credentials or system settings. They might also execute PostgreSQL commands that modify data, potentially altering or deleting information in the database.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection and access controls. Organizations using affected versions may face compliance violations and legal consequences.

Mitigation Strategies

Upgrade listmonk to version 6.2.0 or later immediately. This version fixes the vulnerability by properly validating query tables in the GET /api/subscribers/export endpoint. Ensure backups are taken before upgrading.

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