CVE-2022-0212: 10web Spidercalendar

Medium severity, CVSS 6.1. EPSS: 2.3% chance of exploitation in the next 30 days.

The SpiderCalendar WordPress plugin through 1.5.65 does not sanitise and escape the callback parameter before outputting it back in the page via the window AJAX action (available to both unauthenticated and authenticated users), leading to a Reflected Cross-Site Scripting issue.

Affected products

• 10web Spidercalendar: up to and including 1.5.65

Published 2022-02-14. Last modified 2026-06-17.