CVE-2025-68979: Simplecalendar Google Calendar Events

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

Authorization Bypass Through User-Controlled Key vulnerability in SimpleCalendar Google Calendar Events google-calendar-events allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Google Calendar Events: from n/a through <= 3.5.9.

Affected products

• Simplecalendar Google Calendar Events: up to and including 3.5.9

Published 2025-12-30. Last modified 2026-10-07.