An issue was discovered in Orchard before 1.10. The Media Settings Allowed File Types list field allows an attacker to add a XSS payload that will execute when users attempt to upload a disallowed file type, causing the error to display.
Severity
CVSS 3.1
5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)