CVE-2025-14548

medium

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/2e61489d-a433-4d44-bb12-8c84204922b9?source=cve

https://plugins.trac.wordpress.org/changeset?new=3419088%40calendar%2Ftrunk&old=3122280%40calendar%2Ftrunk

https://plugins.trac.wordpress.org/browser/calendar/trunk/calendar.php#L899

https://plugins.trac.wordpress.org/browser/calendar/trunk/calendar.php#L2154

Details

Source: Mitre, NVD

Published: 2025-12-23

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.0003