CVE-2025-43921 | THREATINT

Description

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

Reserved 2025-04-19 | Published 2025-04-20 | Updated 2025-04-28 | Assigner mitre

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-863 Incorrect Authorization

Product status

Default status

unknown

2.1.39

affected

References

code.launchpad.net/~mailman-coders/mailman/2.1

github.com/0NYX-MY7H/CVE-2025-43921

github.com/cpanel/mailman2-python3

www.openwall.com/lists/oss-security/2025/04/21/6

cve.org (CVE-2025-43921)

nvd.nist.gov (CVE-2025-43921)

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