CVE-2025-43921CWE-863

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint

Medium · published April 20, 2025

CVSS v3.1
5.3
EPSS
0%
Percentile
40.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00482 · 40.6th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2025-04-20T00:00Z
EPSS history
Timeline
  • 20 APR 00:00Z
    GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint
    cvelistv5