CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
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).
Explanation of Vulnerability in Simple Terms
Booking Calendar – Event Calendar versions 2.1.6 and earlier contain a cross-site scripting vulnerability that allows attackers to inject malicious scripts affecting multiple users. The vulnerability requires no authentication or user interaction, and can impact users across different parts of the application. Site administrators should update to a version newer than 2.1.6 as soon as a patch becomes available.
What an attacker can do
Inject malicious scripts that execute in users' browsers and steal session data or perform actions on their behalf.
Potential impact on your site
Visitors and users of your site could have their sessions hijacked or be redirected to malicious content without their knowledge.
Conditions required to exploit
Network access only; no authentication or user interaction required.
Key dates
External resources
Related vulnerabilities
