CVE-2026-18776

TrueBooker Appointment Booking < 1.2.7 - Unauthenticated Account Takeover via Multiple AJAX Actions

The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in some of its AJAX actions, allowing unauthenticated users to change the email address of arbitrary users, including administrators, and subsequently take over their account via the password reset flow.

Affected

TrueBooker

CVSS v3.1 CNA

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.50% chance of exploitation in the next 30 days, 41st percentile

Published

2026-08-19

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/4b6abb2d-941b-429f-a480-33d1aafad450/

References

• CVE Record
• NVD entry