PT-2026-21199 · WordPress · Wp Fullcalendar

Marcus + 1 · Published 2026-02-20 · Updated 2026-02-21 · CVE-2026-22351

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions WP FullCalendar versions through 1.6

Description The WP FullCalendar software contains a missing authorization flaw. This allows exploitation of incorrectly configured access control security levels. No information is available regarding the number of potentially affected devices or any real-world incidents where this issue was exploited.

Recommendations Update WP FullCalendar to a version later than 1.6.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-22351

Affected Products

Wp Fullcalendar

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-22351 · Security Note
• https://twitter.com/CVEnew/status/2025154246807597060 · Twitter Post
• https://patchstack.com/database/Wordpress/Plugin/wp-fullcalendar/vulnerability/wordpress-wp-fullcalendar-plugin-1-6-broken-access-control-vulnerability?_s_id=cve · Note