CVE-2026-72546Network attack vectorHinoki check available

Cross-account record modification via unscoped event lookup

Published Aug 11, 2026 · Updated Aug 11, 2026

IDOR in Attendize through commit 9289acb allows remote authenticated users to alter other accounts' event and order records. The postInviteAttendee endpoint loads a caller-supplied event ID without restricting the query to the authenticated organiser account. Any event-organiser account can therefore inject attendees and orders across account boundaries, corrupting event and financial data.

CVSS severity7.1
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

IDOR in Attendize through commit 9289acb allows remote authenticated users to alter other accounts' event and order records. The postInviteAttendee endpoint loads a caller-supplied event ID without restricting the query to the authenticated organiser account. Any event-organiser account can therefore inject attendees and orders across account boundaries, corrupting event and financial data.

The record

CVE
CVE-2026-72546
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Attendize
Product
Attendize
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 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 <=9289acb

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Attendize · Attendizeversion=0 <=9289acb

Published CVSS scores

7.1TuranSecCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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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