CVE-2026-52841: fallo de gravedad baja en alextselegidis easyappointments
Easy!Appointments: Authorization bypass in Google OAuth provider binding lets any backend user rebind a peer provider's Google sync
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
8Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 3.1epss 0.2%
Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, `Google::oauth` at `application/controllers/Google.php:278` stores its URL-supplied `provider_id` in the session, and `oauth_callback` saves the issued Google OAuth token against that row without checking the caller owns the provider. Any logged-in backend user (admin, provider, or secretary) rebinds a peer provider's Google sync to a Google account they control. The peer's appointments then sync into the attacker's calendar with each customer's name and email attached as attendee data. Version 1.6.0 patches the issue.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
Productos afectados
alextselegidis · easyappointmentsCVEs relacionadas — alextselegidis easyappointments
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-52837MEDIUMEasy!Appointments has unauthenticated customer PII disclosure on booking reschedule pageEPSS 0.5%CVE-2026-108758HIGHEasy!Appointments through 1.6.0 Authorization Bypass via booking/register EndpointEPSS 0.3%CVE-2026-52840LOWEasy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal networkEPSS 0.2%CVE-2026-23622HIGHCSRF Protection Bypass: Sensitive endpoints accept GET requests, enabling admin account takeoverEPSS 0.2%CVE-2026-55651HIGHEasy!Appointments Vulnerable to Appointments Takeover via Excessive Data ExposureEPSS 0.2%CVE-2026-52838LOWEasy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSSEPSS 0.2%