CVE-2025-22261 MEDIUM

CVE-2025-22261: WordPress WP FullCalendar plugin <= 1.5 - Cross Site Scripting (XSS) vulnerability

Vendor Marcus (Aka @Msykes)
Product WP FullCalendar
Weakness CWE-79 · XSS
Published January 7, 2025
Last update April 28, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcus (aka @msykes) WP FullCalendar wp-fullcalendar allows Stored XSS.This issue affects WP FullCalendar: from n/a through <= 1.5.

Key dates

02Disclosure timeline

January 7, 2025 CVE published
April 28, 2026 Record updated