PT-2025-26916 · WordPress · Timezonecalculator

Muhammad Yudha · Published 2025-06-26 · Updated 2025-06-26 · CVE-2025-5559

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: TimeZoneCalculator plugin for WordPress versions up to, and including, 3.37

Description: The issue is related to Stored Cross-Site Scripting in the TimeZoneCalculator plugin for WordPress. This is due to insufficient input sanitization and output escaping on user-supplied attributes in the timezonecalculator output shortcode. Authenticated attackers with contributor-level access and above can inject arbitrary web scripts in pages, which will execute when a user accesses an injected page.

Recommendations: For versions up to, and including, 3.37, update to a version that addresses the insufficient input sanitization and output escaping issue in the timezonecalculator output shortcode. As a temporary workaround, consider restricting access to the timezonecalculator output shortcode for users with contributor-level access and above until a patch is available.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-5559

Affected Products

Timezonecalculator

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2025-5559 · Security Note
• https://osv.dev/vulnerability/CVE-2025-5559 · Vendor Advisory
• https://wordpress.org/plugins/timezonecalculator · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/f1e1a9ab-9ba9-45ff-aecd-b8953abc653a?source=cve · Note
• https://t.me/cvenotify/126715 · Telegram Post
• https://t.me/cvetracker/27080 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1938141535259762965 · Twitter Post
• https://twitter.com/CVEnew/status/1938081852125778278 · Twitter Post