WHO COVID-19 Mobile App: Improper Input Validation on User's Location on PUT /WhoService/putLocation Could Affect Availability/Falsify Users

Summary: Note: I noticed that that the team has fixed issues like an XSS that's caused only from a header value typically OOS since it's not directly exploitable https://github.com/WorldHealthOrganization/app/pull/855, so in the spirit of this I'm also reporting another "good-to-fix" issue. On th...