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TI-2026-50806 Aliases CVE-2026-72547GHSA-pm9m-4jvw-f3q5

Attendize Attendize - Insecure Direct Object Reference

Priority LOW 31CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

An insecure direct object reference vulnerability in Attendize through commit 9289acb allows any authenticated event organiser to bulk import attendees into events belonging to other accounts via the postImportAttendee endpoint. The endpoint loads the target event by ID without verifying ownership against the requesting organiser account. An attacker can inject bulk attendee data into any event in the system regardless of account boundaries.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00278 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AttendizeAttendizeup to 9289acb—No fix listedCNA
  • Attendize VendorAttendize Affected up to 9289acb Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-72547
  2. 2026-10-03 Alias added: GHSA-pm9m-4jvw-f3q5

References

Other 1

  • TI-2026-50805 Attendize Attendize - Insecure Direct Object Reference CVSS 3.1HIGH 7.1
  • TI-2026-50928 Attendize Attendize - Cross-Tenant Authorization Bypass CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences