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Medium severity5.3NVD Advisory· Published Apr 20, 2025· Updated Jun 17, 2026

CVE-2025-43921

CVE-2025-43921

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • GNU/Mailman3 versions
    cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*range: >=2.1.1,<=2.1.39
    • (no CPE)range: =2.1.39
    • (no CPE)range: 2.1.39

Patches

Vulnerability mechanics

References

2

News mentions

0

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