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Case File

CVE-2025-43921

MEDIUM · CVSS 5.3 EPSS 0.43% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-04-20 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. Public exploit code or proof-of-concept references have been detected in its references. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-43921
Severity
MEDIUM
CVSS
5.3
EPSS
0.43%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)