Incorrect permission assignment for critical resource issue exists in Exment v6.1.4 and earlier and Exment v5.0.11 and earlier. A logged-in user with the permission of table management may obtain and/or alter the information of the unauthorized table.
https://jvn.jp/en/jp/JVN74538317/
https://exment.net/vulnerability-correspondence-version-6-1-5-and-5-0-12-released/