XSS in Stellarwp The Events Calendar
CVE-2025-5144
The The Events Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-date-*’ parameters in all versions up to, and including, 6.13.2 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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (15.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/56822fe5-352c-4269-9fab-d8c79… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/the-events-calendar/tags/6.12.0.1/vendor/boo… (Product)
- github.com/uxsolutions/bootstrap-datepicker/blob/master/js/bootstrap-datepicker… (Not Applicable)
- bootstrap-datepicker.readthedocs.io/en/latest/index.html (Not Applicable)
- plugins.trac.wordpress.org/browser/the-events-calendar/tags/6.13.0/vendor/boots… (Product)
- plugins.trac.wordpress.org/changeset/3307301/ (Patch)
Frequently asked questions
- What is CVE-2025-5144?
- CVE-2025-5144 is a medium-severity vulnerability in Stellarwp The Events Calendar, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-06-11.
- How severe is CVE-2025-5144?
- Medium severity. CVSS v3 base score is 6.4 out of 10.