Calendar, CVE-2025-14548

CVE, Research URL: CVE-2025-14548
Home page URL: Security reports for Calendar
Application: Calendar
Published on: Dec 23, 2025
Research Description: The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.
Affected versions: max 1.3.17.
Status: vulnerable