Centreon 3.4.x (fixed in Centreon 18.10.0) allows XSS via the Service field to the main.php?p=20201 URI, as demonstrated by the "Monitoring > Status Details > Services" screen.
Severity
CVSS 3.0
5.4 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)