Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-84907
Unknown Eventin — Eventin < 4.1.24 - Unauthenticated Order and Attendee Status Reset via Payment REST Endpoint
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H N N U N L N 3.7 .0025 14.7 —
AFFECTED
Product Versions Fixed
Eventin 4.1.5 – —
TIMELINE
Sep 2 Reserved by WPScan
Sep 16 Published (CNA: WPScan)
Sep 17 EXPLOIT PUBLISHED — CVE-2026-84907 (Unknown Eventin). Public exploit reference added.
Description
The Eventin WordPress plugin before 4.1.24 does not properly authorise order finalisation when its offline (local) payment method is enabled, relying on a nonce that is exposed to unauthenticated visitors and never checking that the caller owns the order, allowing unauthenticated attackers to reset any existing order and its attendees to a pending state and thereby invalidate paid tickets.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| September 2, 2026 | Reserved | Reserved by WPScan |
| September 16, 2026 | Published | Published (CNA: WPScan) |
| September 17, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-84907 (Unknown Eventin). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Unknown | Eventin | — | 4.1.5 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-84907 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 Sunday, October 4, 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.