MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP's theme management is not escaped properly.
{ "severity": "Medium", "cpes": [ "cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*" ] }
"https://github.com/bitnami/vulndb/tree/main/data/mybb/BIT-mybb-2021-41866.json"