CVE-2025-14548

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.

The following products are affected by CVE-2025-14548 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-14548.

URL	Resource
https://plugins.trac.wordpress.org/browser/calendar/trunk/calendar.php#L2154
https://plugins.trac.wordpress.org/browser/calendar/trunk/calendar.php#L899
https://plugins.trac.wordpress.org/changeset?new=3419088%40calendar%2Ftrunk&old=3122280%40calendar%2Ftrunk
https://www.wordfence.com/threat-intel/vulnerabilities/id/2e61489d-a433-4d44-bb12-8c84204922b9?source=cve