Information disclosure in Truebooker
CVE-2026-18778
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.
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Unknown Truebooker
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-18778?
- CVE-2026-18778 is a medium-severity vulnerability in Truebooker, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-08-19.
- How severe is CVE-2026-18778?
- Medium severity. CVSS v3 base score is 5.3 out of 10.