CVE-2026-24523: Marcus Aka @msykes Wp Fullcalendar

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Marcus (aka @msykes) WP FullCalendar wp-fullcalendar allows Retrieve Embedded Sensitive Data.This issue affects WP FullCalendar: from n/a through <= 1.6.

Affected products

• Marcus Aka @msykes Wp Fullcalendar: up to and including 1.6

Published 2026-01-23. Last modified 2026-06-17.