medium4.8
CVE-2026-16269
The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authent…
Impact
The Newsletters WordPress plugin before 4.16 does not strictly compare its API authentication key, allowing unauthenticated attackers to bypass the API authentication via type juggling and perform privileged actions such as modifying subscriber records and sending emails, when the optional API has been enabled.
Affected products
| Product | Affected versions |
|---|---|
| Newsletters WordPress Plugin | before 4.16 |
Versions were read from the advisory text. No structured product data has been published for this record yet.