Answer in brief
CVE-2026-15398 records a Unknown severity vulnerability in Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) <= 4.1.22 - Authenticated (Subscriber+) Missing Authorization to Order Completion / Free Ticket Redemption. The current sources do not mark it as known exploited. The current feed maps arraytics/Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps arraytics/Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| arraytics/Eventin – Event Calendar, Tickets, Registration, Booking & WooCommercegeneric | 0 | Not reported |
Published upstream
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 9, 2026
The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.1.22. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to bypass payment for paid events, fraudulently mark orders as completed, deplete ticket inventory, and trigger confirmation emails for tickets never purchased. This is exploitable by unauthenticated attackers because the wp_rest nonce is publicly emitted on every frontend page, and the order creation endpoint mints and returns an order_access_token to any caller possessing that nonce — giving unauthenticated users all credentials required to reach the privileged update_booking_status branch.
Quoted source text, attributed separately from HOL analysis.