High · 7.5 CVE-2026-22351 EUVD-2026-7490GHSA-6v87-78cw-pw29

WordPress WP FullCalendar plugin <= 1.6 - Broken Access Control vulnerability

Published Feb 20, 2026 · Updated Apr 28, 2026 · Assigned by Patchstack

Vendor: Marcus (aka @msykes) Product: WP FullCalendar

Description

Missing Authorization vulnerability in Marcus (aka @msykes) WP FullCalendar wp-fullcalendar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP FullCalendar: from n/a through <= 1.6.

Affected products

Vendor	Product	Affected	Fixed
Marcus (aka @msykes)	WP FullCalendar	≤ 1.6	—

References

https://patchstack.com/database/Wordpress/Plugin/wp-fullcalendar/vulnerability/wordpress-wp-fullcalendar-plugin-1-6-broken-access-control-vulnerability?_s_id=cve vdb-entry