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.
Affected products
nadh: listmonk
References3
- github.com/knadh/listmonk/security/advisories/GHSA-85j8-5c6w-gc… PatchVendor Advisory
- github.com/knadh/listmonk/commit/347f5976759232c36e571cf58b4bfe… Patch
- github.com/knadh/listmonk/releases/tag/v6.1.0 ProductRelease Notes
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 7 · as of 12 November 2026
- CWE
- CWE-639
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