CVE-2025-43921
Last modified
CVE-2025-43921 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Mailman | >= 2.1.1, <= 2.1.39 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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