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Threat intelligence

TrueBooker <= 1.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to Account Takeover to 'truebooker_wp_user_id' Parameter

CVE-2026-18315 · 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 <= 1.2.6 - Unauthenticated Authorization Bypass Through User-Controlled Key to Account Takeover to 'truebooker_wp_user_id' Parameter
Affected software
truebooker-appointment-booking(Plugin)
Affected versions
  • ≤ 1.2.6
Authentication
Unauthenticated
Vulnerability type
Authentication bypass
Published
18 August 2026
CISA KEV
Not listed in CISA KEV at last catalog refresh
Impact
May allow access to accounts or admin areas without valid credentials.
Source

Data imported from Wordfence Intelligence (advisory 73251a74-5be3-446b-8e0a-ff2d1484c467). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Truebooker Appointment Booking version against this catalog when the Defence plugin is connected to your WordPress site.