CVE-2024-0855: Spiffyplugins Spiffy Calendar

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

The Spiffy Calendar WordPress plugin before 4.9.9 doesn't check the event_author parameter, and allows any user to alter it when creating an event, leading to deceiving users/admins that a page was created by a Contributor+.

Affected products

• Spiffyplugins Spiffy Calendar: before 4.9.9 (fixed in 4.9.9)

Published 2024-02-27. Last modified 2026-06-17.