What’s Vulnerable › Vulnerabilities

CVE-2026-1044: Tennis Court Bookings <= 1.2.7 - Authenticated (Administrator+) Stored Cross-Site Scripting via Admin Settings and Calendar Parameters

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-19 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• renoiriii Tennis Court Bookings: through 1.2.7

References

• https://downloads.wordpress.org/plugin/tennis-court-bookings.zip
• https://plugins.trac.wordpress.org/browser/tennis-court-bookings/tags/1.2.7/views/calendar_form.php#L201
• https://plugins.trac.wordpress.org/browser/tennis-court-bookings/tags/1.2.7/views/calendar_form.php#L43
• https://plugins.trac.wordpress.org/browser/tennis-court-bookings/tags/1.2.7/views/setting.php#L65
• https://wordpress.org/plugins/tennis-court-bookings/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/99b91fb6-9e60-447d-ab43-2be231052140?source=cve

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