CVE-2026-57960

MediumCVSS 6.5/10Last modified Jul 14, 2026

Description

Hi.Events through 1.9.0 public check-in list endpoints use short_id as sole access control, allowing unauthenticated access to retrieve full attendee lists including emails and personal information. Attackers with knowledge of the short_id can call GET /api/public/check-in-lists/{short_id}/attendees to read attendee data and create or delete check-in records without authentication.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

CWE-359

Affected software

No affected versions have been published.

Timeline

Published: Jun 29, 2026
Last modified: Jul 14, 2026
NVD status: Deferred

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