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CVE-2026-8143

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

Description (CNA)

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).

Affected (CNA)

Vendor / productVersions
omnivo / Booking Calendar – Event Calendaraffected 0 through 2.1.6

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.