Omnivo vulnerabilities

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Published CVEs affecting Omnivo products: 1 record(s), with severity, exploitation and fixes.

Booking Calendar – Event Calendar 1

Exploited only (KEV) →

CVE-2026-8143 High · 7.2 CWE-79 May 27, 2026

Booking Calendar – Event Calendar <= 2.1.6 - Unauthenticated Stored Cross-Site Scripting via Multiple Parameters

The HBook plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'hb_country_iso', 'hb_usa_state_iso', and 'hb_canada_province_iso' parameters in all versions up to, and including, 2.1.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (the HBook Customers admin page).