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Release: Newsletters 4.16 Clear all filters
TI-2026-13604 CVE-2026-16269 · GHSA-5mfh-c59g-8688

Newsletters < 4.16 - Unauthenticated API Authentication Bypass via Type Juggling

Priority LOW 22

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…

CVSS 3.1MEDIUM 4.8 Network No auth No interaction EPSS 0.00363 Published 2026-08-08 Fixed in 4.16 CWE-287
TI-2026-13602 CVE-2026-16267 · GHSA-jxc3-pfg8-hv86

Newsletters < 4.16 - Unauthenticated PHP Object Injection via Date Form Field

Priority LOW 38

The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects.

CVSS 3.1HIGH 8.1 Network No auth No interaction EPSS 0.00453 Published 2026-08-08 Fixed in 4.16 CWE-502