Zoho ManageEngine Remote Access Plus 10.0.259 allows HTML injection via the Description field on the Admin - User Administration userMgmt.do?actionToCall=ShowUser screen.

A design issue was discovered in GetInternetRequestHandle, InternetSendRequestEx and InternetSendRequestByBitrate in the client side of Zoho ManageEngine Desktop Central 10.0.552.W and Remote Access Plus before 10.1.2119.1. By exploiting this issue, an attacker-controlled server can force the client to skip TLS certificate validation, leading to a man-in-the-middle attack against HTTPS and unauthenticated remote code execution.

Zoho ManageEngine Remote Access Plus 10.0.258 does not validate user permissions properly, allowing for privilege escalation and eventually a full application takeover.

An issue was discovered in Zoho ManageEngine Remote Access Plus 10.0.447. The service to test the mail-server configuration suffers from an authorization issue allowing a user with the Guest role (read-only access) to use and abuse it. One of the abuses allows performing network and port scan operations of the localhost or the hosts on the same network segment, aka SSRF.

An authorization issue was discovered in the Credential Manager feature in Zoho ManageEngine Remote Access Plus before 10.0.450. A user with the Guest role can extract the collection of all defined credentials of remote machines: the credential name, credential type, user name, domain/workgroup name, and description (but not the password).