boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-16269MEDIUM
Unknown Newsletters — Newsletters < 4.16 - Unauthenticated API Authentication Bypass via Type Juggling
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   N   N  U  N  L  L    4.8   .0023   13.6     —
AFFECTED
  Product      Versions     Fixed
  Newsletters  unspecified  —
TIMELINE
  Jul 20  Reserved by WPScan
  Aug 8   Published (CNA: WPScan)
  Aug 10  EXPLOIT PUBLISHED — CVE-2026-16269 (Unknown Newsletters). Public exploit reference added.
CWE-287 · CNA: WPScan · CVSS v3.1 · 1 reference · NVD status: Received

Description

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.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
July 20, 2026ReservedReserved by WPScan
August 8, 2026PublishedPublished (CNA: WPScan)
August 10, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-16269 (Unknown Newsletters). Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
UnknownNewsletters

Weaknesses

CWE-287

References (1)

Related

Authoritative record: CVE-2026-16269 at cve.org

Weaknesses: CWE-287

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-16269 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.