CVE-2026-57960
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductHi.Events
PublishedJun 29, 2026
First seenJun 29, 2026
Weakness typeCWE-359CWE-359
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HiEventsDev Hi.Events | v ≤ 1.9.0 | — |
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