Stored Cross-Site Scripting in TimeZoneCalculator Plugin for WordPress
CVE-2025-5559

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Timezonecalculator
Vendor
CVE Published:
26 June 2025

What is CVE-2025-5559?

The TimeZoneCalculator plugin for WordPress has a vulnerability that allows authenticated attackers with contributor-level access and above to execute arbitrary web scripts. This occurs due to inadequate input sanitization and output escaping on attributes supplied by users through the plugin’s 'timezonecalculator_output' shortcode. Consequently, malicious scripts can be injected into pages, leading to potential security breaches each time an affected page is accessed.

Affected Version(s)

TimeZoneCalculator * <= 3.37

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://wordpress.org/plugins/timezonecalculator/

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

muhammad yudha
.
CVE-2025-5559 : Stored Cross-Site Scripting in TimeZoneCalculator Plugin for WordPress