CVE-2025-43921 MEDIUM

CVE-2025-43921

Vendor Gnu
Product Mailman
Weakness CWE-863 · Incorrect authorization
Published April 20, 2025
Last update April 28, 2025
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 20, 2025 CVE published
April 28, 2025 Record updated