CVE-2026-34584
listmonk: Broken Access Control in CSV Import (Unauthorized List Assignment)
- State
- Published
- Severity
- 5.4 Medium
- Published
- Apr 2, 2026
- Updated
- Apr 2, 2026
- Reserved
- Mar 30, 2026
Description
listmonk is a standalone, self-hosted, newsletter and mailing list manager. From version 4.1.0 to before version 6.1.0, bugs in list permission checks allows users in a multi-user environment to access to lists (which they don't have access to) under different scenarios. This only affects multi-user environments with untrusted users. This issue has been patched in version 6.1.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | GitHub_M |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
listmonkknadh |
|
References
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