What’s Vulnerable › Vulnerabilities
CVE-2026-18778: TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Customer PII Disclosure via Multiple AJAX Actions
- Severity: medium (CVSS 5.3 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: 2026-08-19 · updated 2026-08-26
- Weakness: CWE-200
Description
The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in some of its AJAX actions, allowing unauthenticated users to retrieve the personal information of customers who booked an appointment, including their name, email address, phone number and postal address.
Affected products
- TrueBooker: before 1.2.7 — fixed in 1.2.7
How to fix
Upgrade to a fixed version: TrueBooker 1.2.7. Check the vendor advisory for mitigations.
References
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