Vulnerability Description
The TimeZoneCalculator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'timezonecalculator_output' shortcode in all versions up to, and including, 3.37 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bernhard-Riedl | Timezonecalculator | <= 3.37 |
Related Weaknesses (CWE)
References
- https://wordpress.org/plugins/timezonecalculator/Product
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f1e1a9ab-9ba9-45ff-aecThird Party Advisory
FAQ
What is CVE-2025-5559?
CVE-2025-5559 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The TimeZoneCalculator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'timezonecalculator_output' shortcode in all versions up to, and including, 3.37 due to insuff...
How severe is CVE-2025-5559?
CVE-2025-5559 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-5559?
Check the references section above for vendor advisories and patch information. Affected products include: Bernhard-Riedl Timezonecalculator.