{"id":"CVE-2026-72690","summary":"Attendize Attendize - Cross-Tenant Authorization Bypass","details":"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.","modified":"2026-10-21T03:00:19.321886004Z","published":"2026-08-10T11:59:08.912Z","database_specific":{"cna_assigner":"TuranSec","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72690.json"},"references":[{"type":"ADVISORY","url":"https://github.com/Attendize/Attendize"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72690.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72690"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/attendize/attendize","events":[{"introduced":"0"},{"last_affected":"9289acb"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"9289acb"}]},{"range":[{"introduced":"0"},{"last_affected":"9289acb"}],"source":"DESCRIPTION"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72690.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"}]}