[Page Analyst] Inviting group member to join watch party on behalf page
It is possible for page analyst to invite another group-linked-page member to watch party on behalf the page itself. Steps : 1. As page analyst create a watch party in group and you will redirect to https://www.facebook.com/groups/<Group ID>/wp/<Watch Party> 2. Once you redirect, change the url to https://www.facebook.com/groups/<Group ID>/wp/<Watch Party>/?av=<Page ID> 3. Now go to invite menu and invite any group member and they will receive the notification from the page. Here is the video, please skip to 0:55 for the proof of concept. Facebook Team fix the endpoint but the root cause of this issue is from the graphql. Here is another POC (Using FB Android Acc Token) : Impact : This would allow a group-linked Page Analyst to be able to invite Group members to join the watch party as the Page instead of their normal user Timeline : 22 Aug 2018 : Report to Facebook 25 Aug 2018 : Triaged 6 Sept 2018 : First st