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CVE-2026-72547— Attendize Attendize - Insecure Direct Object Reference

Quick assessment

Affected
Attendize Attendize
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Attendize是Attendize组织的一款活动票务管理平台。 Attendize 9289acb及之前版本存在授权问题漏洞，该漏洞源于postImportAttendee端点通过ID加载目标事件时未验证组织者账户所有权，导致不安全的直接对象引用，可能允许任何已认证活动组织者将参与者批量导入属于其他账户的活动。

CVSS 7.1 · High EPSS 0.28% · P18

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
Attendize Attendize ≤ 9289acb affected
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I. Basic Information for CVE-2026-72547

Vulnerability Information
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Vulnerability Title
Attendize Attendize - Insecure Direct Object Reference
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Attendize 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Attendize是Attendize组织的一款活动票务管理平台。 Attendize 9289acb及之前版本存在授权问题漏洞，该漏洞源于postImportAttendee端点通过ID加载目标事件时未验证组织者账户所有权，导致不安全的直接对象引用，可能允许任何已认证活动组织者将参与者批量导入属于其他账户的活动。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Attendize Attendize 0 ~ 9289acb -

II. Public POCs for CVE-2026-72547

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7808 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-72547

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Vendor Pages for CVE-2026-72547 (1)

IV. Related Vulnerabilities

Same product: Attendize
Same vendor: Attendize
Same weakness: CWE-639

V. Comments for CVE-2026-72547

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