CVE-2026-62361
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
Listmonk prior to version 6.2.0 contains an SQL injection vulnerability in the GET /api/subscribers/export endpoint. The user-controlled query parameter is passed to QuerySubscribersForExport without validation, allowing an authenticated user with appropriate permissions to read arbitrary database tables and execute data-modifying PostgreSQL CTEs.
Risk Assessment
An attacker can read sensitive data from tables such as users and settings, and also modify data in the database, leading to a breach of confidentiality and integrity of the system.
Recommendation
Immediately update listmonk to version 6.2.0 or later, which includes a fix for this vulnerability.
Other vulnerabilities in listmonk
See all- CVE-2026-34828High
listmonk from version 4.1.0 to before 6.1.0 has a session management vulnerability that allows previously issued authenticated sessions to remain valid after password reset or change. An attacker with a valid session cookie can retain access to the account even after the victim changes their password.
- CVE-2026-34584Medium
listmonk versions 4.1.0 to before 6.1.0 have bugs in list permission checks that allow users in a multi-user environment to access lists they don't have permission to. This only affects multi-user environments with untrusted users.
- CVE-2025-58430Medium
listmonk is a standalone, self-hosted, newsletter and mailing list manager. In versions up to and including 1.1.0, every http request in addition to the session cookie 'session' there included 'nonce'. The value is not checked and validated by the backend, removing 'nonce' allows the requests to be processed correctly. This may seem harmless, but if chained to other vulnerabilities it can become a critical vulnerability. Cross-site request forgery and cross-site scripting chained together can result in improper admin account creation. As of time of publication, no patched versions are available.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS