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.

INFO

Published Date :

2025-04-20T00:00:00.000Z

Last Modified :

2025-04-28T13:45:41.386Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-43921 vulnerability.

Vendors Products
Gnu
  • Mailman
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-43921.

URL Resource
https://code.launchpad.net/~mailman-coders/mailman/2.1 cve-icon cve-icon
https://github.com/0NYX-MY7H/CVE-2025-43921 cve-icon cve-icon
https://github.com/cpanel/mailman2-python3 cve-icon cve-icon
https://www.openwall.com/lists/oss-security/2025/04/21/6 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact