cmseasy v7.7.7.7 20230520 was discovered to contain a path traversal vulnerability via the add_action method at lib/admin/language_admin.php. This vulnerability allows attackers to execute arbitrary code and perform a local file inclusion.
https://blog.pumpk1n.com/2023/06/06/cmseasy-v7-7-7-7-20230520-path-traversal/