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The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute the key and perform privileged actions such as adding and deleting subscribers and sending emails, when the optional API has been enabled.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Newsletters Lite Plugin | — | Update newsletters-lite plugin to version 4.17, or a newer patched version | Oct 30, 2026 | Aug 27, 2026 |
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