In ActiveAdmin (aka Active Admin) before 2.12.0, a concurrency issue allows a malicious actor to access potentially private data (that belongs to another user) by making CSV export requests at certain specific times.
CVSS 3.1MEDIUM 6.5·Network·No auth·User interaction·EPSS 0.00496·Published 2023-12-28·Fixed in 2.12.0CWE-1236