# CVE-2026-15402

## Summary

- **CVE ID:** CVE-2026-15402
- **Severity:** MEDIUM
- **CVSS Score:** 6.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N)
- **CWE:** CWE-79
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 16, 2026

## Description

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.

## Affected Products

- arraytics — Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce (0)

## References

- [CNA](https://www.wordfence.com/threat-intel/vulnerabilities/id/a07070b6-37d2-4ccf-ae81-a08ac7b76241?source=cve)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/templates/event/schedule-list.php#L115)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/utils/helper.php#L78)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/core/schedule/Api/ScheduleController.php#L516)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/utils/functions.php#L47)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/core/schedule/Api/ScheduleController.php#L253)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/base/post-model.php#L202)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.16/core/AccessControl/Permission.php#L297)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/templates/event/schedule-list.php#L115)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/utils/helper.php#L78)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/core/schedule/Api/ScheduleController.php#L516)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/utils/functions.php#L47)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/core/schedule/Api/ScheduleController.php#L253)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/base/post-model.php#L202)
- [CNA](https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.15/core/AccessControl/Permission.php#L297)
- [CNA](https://plugins.trac.wordpress.org/changeset?reponame=&old=3689867%40wp-event-solution&new=3689867%40wp-event-solution)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._