Erxes, an experience operating system (XOS) with a set of plugins, is vulnerable to cross-site scripting in versions 0.22.3 and prior. This results in client-side code execution. The victim must follow a malicious link or be redirected there from malicious web site. There are no known patches.

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.

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.

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.