An issue was discovered in MISP 2.4.9x before 2.4.99. In app/Model/Event.php (the STIX 1 import code), an unescaped filename string is used to construct a shell command. This vulnerability can be abused by a malicious authenticated user to execute arbitrary commands by tweaking the original filename of the STIX import.

An issue was discovered in app/Controller/UsersController.php in MISP 2.4.92. An adversary can bypass the brute-force protection by using a PUT HTTP method instead of a POST HTTP method in the login part, because this protection was only covering POST requests.

An issue was discovered in MISP 2.4.91. A vulnerability in app/View/Elements/eventattribute.ctp allows reflected XSS if a user clicks on a malicious link for an event view and then clicks on the deleted attributes quick filter.

app/webroot/js/misp.js in MISP 2.4.91 has a DOM based XSS with cortex type attributes.

An issue was discovered in app/Model/Attribute.php in MISP before 2.4.89. There is a critical API integrity bug, potentially allowing users to delete attributes of other events. A crafted edit for an event (without attribute UUIDs but attribute IDs set) could overwrite an existing attribute.

In MISP before 2.4.89, app/View/Events/resolved_attributes.ctp has multiple XSS issues via a malicious MISP module.

In app/Controller/ServersController.php in MISP 2.4.87, a server setting permitted the override of a path variable on certain Red Hed Enterprise Linux and CentOS systems (where rh_shell_fix was enabled), and consequently allowed site admins to inject arbitrary OS commands. The impact is limited by the setting being only accessible to the site administrator.

The admin_edit function in app/Controller/UsersController.php in MISP 2.4.82 mishandles the enable_password field, which allows admins to discover a hashed password by reading the audit log.

In the sharingGroupPopulateOrganisations function in app/webroot/js/misp.js in MISP 2.4.82, there is XSS via a crafted organisation name that is manually added.

MISP before 2.4.81 has a potential reflected XSS in a quickDelete action that is used to delete a sighting, related to app/View/Sightings/ajax/quickDeleteConfirmationForm.ctp and app/webroot/js/misp.js.