What is CVE-2025-14548?

CVE-2025-14548 is a medium-severity vulnerability in Kieranoshea Calendar, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-12-23.

How severe is CVE-2025-14548?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Kieranoshea Calendar

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Kieranoshea Calendar — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-14548?: CVE-2025-14548 is a medium-severity vulnerability in Kieranoshea Calendar, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-12-23.
How severe is CVE-2025-14548?: Medium severity. CVSS v3 base score is 6.4 out of 10.