An issue was discovered in MISP before 2.4.158. In UsersController.php, password confirmation can be bypassed via vectors involving an "Accept: application/json" header.
An issue was discovered in MISP before 2.4.156. A malicious site administrator could store an XSS payload in the custom auth name. This would be executed each time the administrator modifies a user.
An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag sometimes provided view access to unintended actors.