CVE-2026-72690

Attendize Attendize - Cross-Tenant Authorization Bypass

HIGH
7.1
CVSS Score
Published: August 10, 2026 at 11:59 AM UTC
Updated: October 24, 2026 at 03:10 PM UTC
1 product affected across 1 vendorAttendize

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Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

An improper authorization vulnerability in Attendize through commit 9289acb allows an authenticated remote attacker to inject persistent mandatory survey questions into another organizer's events via the POST /event/{event_id}/question/create endpoint. The postCreateEventQuestion method loads the target event without the tenant-isolation scope, enabling cross-tenant writes; the injected question cannot be removed by the victim because the victim's account-scoped delete path cannot resolve a question owned by another tenant.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v ≤ 9289acb0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: cverecord
https://github.com/Attendize/Attendize

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGH309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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