How to: CVE-2025-43921 (2025-04-20)
```
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.
```
- [0NYX-MY7H/CVE-2025-43921](https://github.com/0NYX-MY7H/CVE-2025-43921)