CVE-2025-43921

MEDIUM Year: 2025
CVSS v3 Score
5.3
Medium
Weakness Type
CWE-863
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Vulnerability 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.

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