| Package | Affected versions | Patched versions |
|---|---|---|
| mailman | ≥ 2.1.1, ≤ 2.1.39 |
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.
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