CVE-2023-39007: Opnsense

Critical severity, CVSS 9.6. EPSS: 2.6% chance of exploitation in the next 30 days.

/ui/cron/item/open in the Cron component of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allows XSS via openAction in app/controllers/OPNsense/Cron/ItemController.php.

Affected products

• Opnsense Opnsense: before 23.7 (fixed in 23.7)

Published 2023-08-09. Last modified 2026-06-17.