Zyxel CNM SecuManager 3.1.0 / 3.1.1 Hardcoded Keys / XSS / Code Execution

Hello, Please find a text-only version below sent to security mailing lists. The HTML version on "Multiple vulnerabilities found in Zyxel CNM SecuManager" is posted here: https://pierrekim.github.io/blog/2020-03-09-zyxel-secumanager-0day-vulnerabilities.html === text-version of the advisory ===...