Threat intelligence

TrueBooker – Appointment Booking and Scheduler System < 1.2.7 - Unauthenticated Privilege Escalation

CVE-2026-18776 · truebooker-appointment-booking

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Truebooker Appointment Booking at a vulnerable version. How SiteRespond intelligence works

Vulnerability: TrueBooker – Appointment Booking and Scheduler System < 1.2.7 - Unauthenticated Privilege Escalation
Affected software: truebooker-appointment-booking(Plugin)
Affected versions: < 1.2.7
Authentication: Unauthenticated
Vulnerability type: Privilege escalation
CVE: CVE-2026-18776
Published: 21 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow a lower-privilege user to perform actions reserved for administrators.
Source: Data imported from Wordfence Intelligence (advisory ba7ae7c1-a7af-4222-972e-4ca7cfebbb52). Methodology and redistribution notes

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