CVE-2026-57960
Hi.Events 1.9.0 - Unauthenticated Attendee PII Exposure via Check-in List short_id
Vexday Risk Score
18Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.3EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
29 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
HiEventsDev · Hi.EventsWant to know if your infrastructure is exposed to this?
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