Vulnerability Description
The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'new_event_type_background_color' parameter in all versions up to, and including, 4.3.4.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the plugin's Guest Submissions setting (allow_submission_by_anonymous_user) to be enabled, which allows unauthenticated attackers to submit event types via the frontend form; when that setting is disabled, exploitation requires at minimum a subscriber-level authenticated account.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/
- https://plugins.trac.wordpress.org/browser/eventprime-event-calendar-management/
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3595157%40eventprime-
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2abd400b-c633-4b38-ad3
FAQ
What is CVE-2026-13441?
CVE-2026-13441 is a vulnerability with a CVSS score of 7.2 (HIGH). The EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'new_event_type_background_color' parameter in all versions up to, and ...
How severe is CVE-2026-13441?
CVE-2026-13441 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-13441?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.