CVE-2026-22351 in FullCalendar Plugin

Summary

by MITRE • 02/20/2026

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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

• Disclosure: 02/20/2026
• Moderation: accepted
• Entry: VDB-346248
• CPE: ready
• CWE: CWE-862 (confirmed)
• CVSS: 7.3 (VulDB)
• EPSS: 0.00047
• KEV: no
• Activities: very low
• Sector: Hostingprovider

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-22351
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22351
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-22351/