Concrete CMS: Stored XSS in Headline TextControl element in Express forms [ concrete5 8.1.0 ]

Intro Luke, I am your Crayons! Type of issue: Core CMS issue Level of severity: Internal Attack Vector Concrete5 version: 8.1.0 Summary There is Stored XSS vulnerability in Headline element of TextControl Express element. This vulnerability allows malicious user to embed JavaScript code and execu...