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OpenBB Arbitrary Avatar File Upload Vulnerability

Reportedly OpenBB is affected by an arbitrary avatar file upload vulnerability. This issue is due to a failure of the application to restrict the file types that are uploaded.

This issue may allow a malicious user displaying their avatar file with their posts to have arbitrary, client-side script executed in an unsuspecting user's browser within the context if the affected website; facilitating HTML injection. This this may lead to cookie based authentication credential theft as well as other attacks.