What the vulnerability does
01Description
The Tennis Court Bookings plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.2.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Tennis Court Bookings versions 1.2.7 and earlier contain a cross-site scripting (XSS) vulnerability in a component requiring high administrative privileges. An attacker with admin access can inject malicious scripts that affect other users or systems interacting with the application. The vulnerability has limited confidentiality and integrity impact but does not affect availability.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect connected systems.
Potential impact on your site
04Site Impact
An admin account compromise could allow script injection affecting other users or integrated systems.
Conditions required to exploit
05Prerequisites
Attacker must have high-level administrative access to the Tennis Court Bookings application.
Key dates
06Disclosure timeline
February 19, 2026
CVE published
April 8, 2026
Record updated
