CVE-2026-15398Network attack vector

Unauthenticated free-ticket redemption via exposed order credentials

Published Sep 9, 2026 · Updated Sep 9, 2026

Authorization bypass in Arraytics Eventin 4.1.22 and earlier allows remote attackers to complete unpaid ticket orders. The frontend exposes a REST nonce, and the order-creation endpoint returns an order_access_token that update_booking_status accepts without adequate authorization. Any visitor can fraudulently complete orders, consume ticket inventory, and trigger confirmation email without payment.

CVSS severity4.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Arraytics Eventin 4.1.22 and earlier allows remote attackers to complete unpaid ticket orders. The frontend exposes a REST nonce, and the order-creation endpoint returns an order_access_token that update_booking_status accepts without adequate authorization. Any visitor can fraudulently complete orders, consume ticket inventory, and trigger confirmation email without payment.

The record

CVE
CVE-2026-15398
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Arraytics
Product
Eventin
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.1.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Arraytics · Eventinversion=0 <=4.1.22

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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