CVE-2025-43921

Published April 20th, 2025

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CVSS v3

5.3

MEDIUM

CVSS v2

N/A

Affected

PROJECT

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.

0NYX-MY7H/CVE-2025-43921

CVE-2025-43921: Unauthorized Mailing List Creation in GNU Mailman 2.1.39

GitHub