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Description

Easy!Appointments is a self hosted appointment scheduler. In version 1.5.2, an Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users. Using these hashes, an attacker can modify or delete appointments of other providers, resulting in an Appointments Takeover. Version 1.6.0 fixes the issue.

PUBLISHED Reserved 2026-06-16 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M




HIGH: 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

= 1.5.2
affected

References

github.com/...tments/security/advisories/GHSA-4vmm-5qvc-w5p7 exploit

github.com/...tments/security/advisories/GHSA-4vmm-5qvc-w5p7

cve.org (CVE-2026-55651)

nvd.nist.gov (CVE-2026-55651)

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