Stored Cross-Site Scripting Vulnerability in Event Calendar Plugin for WordPress
CVE-2026-15402

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce
Vendor
CVE Published:
15 September 2026

What is CVE-2026-15402?

The Event Calendar, Event Registration, Tickets & Booking plugin for WordPress contains a vulnerability that allows authenticated attackers with contributor-level access to inject arbitrary web scripts. This issue arises due to inadequate sanitization of the 'etn_shedule_objective' schedule_slot parameter, allowing these scripts to execute when users visit compromised pages.

Affected Version(s)

Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce 0 <= 4.1.23

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/wp-event-solut...
https://plugins.trac.wordpress.org/browser/wp-event-solut...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wordfence PRISM
.