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Vulnerabilities and Security Researches

The Events Calendar, CVE-2026-84740

CVE, Research URL

CVE-2026-84740

Application

The Events Calendar

Published on
Oct 02, 2026
Research Description
The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.
Affected versions
Min 6.12.0, max 6.17.5.1.
Status
vulnerable