CVE-2026-16264 — Newsletters < 4.18.1 - Unauthenticated Subscriber Record Overwrite and PII Disclosure via IDOR
The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber management actions, and issues a management session to unauthenticat…
Published: 2026-09-23 · CVSS: 6.5 · CVSS 3.1
The Newsletters WordPress plugin before 4.18.1 does not perform an ownership check on some of its subscriber management actions, and issues a management session to unauthenticated visitors on request, allowing attackers to read any subscriber's personal data and overwrite any subscriber's record including their email address.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7