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Description

Hi.Events before 1.11.0 contains a missing server-side visibility enforcement vulnerability that allows unauthenticated attackers to purchase hidden tickets by referencing hidden product and price IDs in order creation requests without authorization checks. Attackers can enumerate sequential hidden ticket IDs from visible ones and submit order creation requests referencing those IDs to purchase VIP, invite-only, or discounted tickets intentionally withheld from public sale.

PUBLISHED Reserved 2026-07-08 | Published 2026-07-14 | Updated 2026-07-14 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

Missing Authorization

Product status

Default status
affected

Any version before 1.11.0
affected

Credits

Adam Młynarczyk finder

References

github.com/HiEventsDev/Hi.Events/releases/tag/v.1.11.0-beta (Release Notes) release-notes

github.com/...Events/security/advisories/GHSA-2h54-cprv-vj74 (GitHub Security Advisory (GHSA-2h54-cprv-vj74)) vendor-advisory

github.com/HiEventsDev/Hi.Events/pull/1259 (Pull Request) issue-tracking

github.com/...ommit/9eec95e6176f500b71bf633986243045ca78cefb (Patch Commit) patch

www.vulncheck.com/...enumeration-via-order-creation-endpoint third-party-advisory

cve.org (CVE-2026-60118)

nvd.nist.gov (CVE-2026-60118)

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