High severity7.2NVD Advisory· Published May 27, 2026

CVE-2026-8143

Description

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 products

WordPress/Hbookinferred2 versions
<=2.1.6+ 1 more
- (no CPE)range: <=2.1.6
- (no CPE)range: <=2.1.6
Package: https://wordpress.org/plugins/hbook

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

codecanyon.net/item/hbook-hotel-booking-system-wordpress-plugin/15059946nvd
www.wordfence.com/threat-intel/vulnerabilities/id/e1c16bcb-c188-4e01-9d0b-e4e1a1ef82eenvd

News mentions

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