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.
When MISP before 2.4.80 is configured with X.509 certificate authentication (CertAuth) in conjunction with a non-MISP external user management ReST API, if an external user provides X.509 certificate authentication and this API returns an empty value, the unauthenticated user can be granted access as an arbitrary user.
app/View/Helper/CommandHelper.php in MISP before 2.4.79 has persistent XSS via comments. It only impacts the users of the same instance because the comment field is not part of the MISP synchronisation.
Malware Information Sharing Platform (MISP) before 2.3.90 allows remote attackers to conduct PHP object injection attacks via crafted serialized data, related to TemplatesController.php and populate_event_from_template_attributes.ctp.
Multiple cross-site scripting (XSS) vulnerabilities in the template-creation feature in Malware Information Sharing Platform (MISP) before 2.3.90 allow remote attackers to inject arbitrary web script or HTML via vectors involving (1) add.ctp, (2) edit.ctp, and (3) ajaxification.js.
app/Controller/TemplatesController.php in Malware Information Sharing Platform (MISP) before 2.3.92 does not properly restrict filenames under the tmp/files/ directory, which has unspecified impact and attack vectors.