---
id: CVE-2026-15402
title: >-
  The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI
  Powered) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via
  'etn_shedule_objective' schedule_slot Parameter in all versions up to, and
  including, …
summary: >-
  The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI
  Powered) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via
  'etn_shedule_objective' schedule_slot Parameter in all versions up to, and
  including, …
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: arraytics
product: 'Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce'
affected:
  - eventin_event_calendar_tickets_registration_booking_woocommerce <= 4.1.23
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:17:06.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15402'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/base/post-model.php#L202
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/core/AccessControl/Permission.php#L297
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/core/schedule/Api/ScheduleController.php#L253
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/core/schedule/Api/ScheduleController.php#L516
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/templates/event/schedule-list.php#L115
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/utils/functions.php#L47
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/utils/helper.php#L78
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/base/post-model.php#L202
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/core/AccessControl/Permission.php#L297
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/core/schedule/Api/ScheduleController.php#L253
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/core/schedule/Api/ScheduleController.php#L516
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/templates/event/schedule-list.php#L115
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/utils/functions.php#L47
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/utils/helper.php#L78
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3689867%40wp-event-solution&new=3689867%40wp-event-solution
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/a07070b6-37d2-4ccf-ae81-a08ac7b76241?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T18:58:57.189647Z'
epss: 0.0025
epssPercentile: 0.14532
ingestedAt: '2026-09-15T07:33:29.275Z'
---

## Overview

The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'etn_shedule_objective' schedule_slot Parameter in all versions up to, and including, 4.1.23 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.