CVE-2025-43921

CVSS 5.3 MEDIUMEPSS 0.4%CWE-863

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.

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

Productos afectados

GNU · Mailman

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Referencias

https://code.launchpad.net/~mailman-coders/mailman/2.1 https://github.com/0NYX-MY7H/CVE-2025-43921 https://github.com/cpanel/mailman2-python3 https://www.openwall.com/lists/oss-security/2025/04/21/6