boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-81655

Unknown Ad Inserter — Ad Inserter 2.8.12 - 2.8.18 - Subscriber+ RCE / Stored XSS via Global Custom Fields
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   L   N  U  H  H  H    7.5   .0023   12.3     —
AFFECTED
  Product      Versions  Fixed
  Ad Inserter  2.8.12 –  —
TIMELINE
  Aug 27  Reserved by WPScan
  Sep 27  Published (CNA: WPScan)
  Sep 28  EXPLOIT PUBLISHED — CVE-2026-81655 (Unknown Ad Inserter). Public exploit reference added.
CWE-94 · CNA: WPScan · CVSS v3.1 · 1 reference · NVD status: Deferred

Description

The Ad Inserter WordPress plugin before 2.8.19 does not correctly restrict access to one of its settings pages, making it reachable by every logged in user under a configuration its own settings allow, and does not filter the content saved there, allowing users with a role as low as subscriber to store code which is then executed as PHP or served unescaped to site visitors.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
August 27, 2026ReservedReserved by WPScan
September 27, 2026PublishedPublished (CNA: WPScan)
September 28, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-81655 (Unknown Ad Inserter). Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
UnknownAd Inserter—2.8.12—

Weaknesses

CWE-94

References (1)

Related

Authoritative record: CVE-2026-81655 at cve.org

Weaknesses: CWE-94

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-81655 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 Saturday, October 3, 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.