Stored XSS vulnerability in html fieldtypes allow authenticated users with field management permissions to inject malicious JavaScript that executes when viewed by higher-privileged users.
This has been fixed in 6.3.2 and 5.73.9.
5.73.96.3.2Exploitability
AV:NAC:LPR:HUI:RScope
S:CImpact
C:HI:HA:N8.1/CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N