Wimi Teamwork On-Premises versions prior to 8.2.0 contain an insecure direct object reference vulnerability in the preview.php endpoint where the item_id parameter lacks proper authorization checks.
CVSS 4.0MEDIUM 5.3·Network·Low privileges·No interaction·EPSS 0.00182·Published 2026-04-08·Fixed in 8.2.0CWE-639