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Stored-Xss at connect.topcoder.com/projects/ affected on project chat members

High
L
Lab45
Submitted None
Reported by sodium_

Vulnerability Details

Technical details and impact analysis

Cross-site Scripting (XSS) - Stored
Hi team , I'm sorry for my bad report and english , but i wish you understand the impact of that bug here , if it well performed the sers may lose their access to their sso accounts ## Summary: While a developer at connect.topcoder.com can manage a messages about his/her project with someonelse , This conversation was not fully protected from XSS , if some user join in the same chat he'd be affected by that xss and his ==SSO== account possibly will be token over ## Steps To Reproduce: After you register to topcoder.com go to connect.topcoder.com and sign on with your sso account , After that Go to https://connect.topcoder.com/new-project/ and add new project **NOTE** : The discussion will not be accessible publicult efore the administratirs manages it , So after the adiministrators accept it the bug will be accessible publiculy █████ 1. GO TO https://connect.topcoder.com/projects/<your_project_id>/messages 2. Add message with random title and this `<script>alert()</script>` as content , then submit 3. You'll get a fully JS code injected If an attacker inject a Javascript code that steal cookies/csrf-token... he'll be able to fully access to the victim account ## Supporting Material/References: Tested on * Chrome Browser . * Windows 7_64x Note : That bug is affect to every machine/browser ## Impact Xss

Report Details

Additional information and metadata

State

Closed

Substate

Resolved

Submitted

Weakness

Cross-site Scripting (XSS) - Stored