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.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.6% chance of exploitation in the next 30 days; higher than 85% of CVEs (scores of 2026-10-31)