CVE-2026-52839

CVE-2026-52839 · Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass

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Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 correctly filter provider-scoped appointments in the `appointments/search` response, proving that provider isolation is an intended security boundary. However, the direct mutation endpoints `appointments/store` and `appointments/update` only check generic appointment privileges and never verify that the submitted `id_users_provider` belongs to the current session. A normal authenticated provider can inject new appointments into another provider's schedule via `store`, or reassign existing appointments into a foreign provider's calendar via `update`. The `store` path contains an additional write-before-crash bug: the unauthorized row is committed to the database before the controller crashes on a type error, so the attacker receives an error response while the foreign appointment is already persisted. Version 1.6.0 patches the issue.

CVSS 3.3 · Niedrig · EPSS 0,2% · Korrektur verfügbar

Veröffentlicht

2026-07-14T15:21:23.199Z

Aktualisiert

2026-07-29T16:25:59.689Z

Technologie-Stack: php

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