Erxes <1.6.1 is vulnerable to Incorrect Access Control. An attacker can bypass authentication by providing a "User" HTTP header that contains any user, allowing them to talk to any GraphQL endpoint.
In Erxes <1.6.2, an authenticated attacker can write to arbitrary files on the system using a Path Traversal vulnerability in the importHistoriesCreate GraphQL mutation handler.
In Erxes <1.6.2, an unauthenticated attacker can read arbitrary files from the system using a Path Traversal vulnerability in the /read-file endpoint handler.