CVE-2026-16267

Summary

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.

Affected Software

VendorProductVersion RangeStatus
UnknownNewsletters0 < 4.16affected

Weaknesses

  • CWE-502 Deserialization of Untrusted Data

References