Hyperlink Injection in Friend Invitation Emails

How it was found

Description

A user can change their last name to a URL in order to send email invitations containing malicious hyperlinks.

Steps to Reproduce

1. Create a new Algolia account with the last name http://example.com.
2. Navigate to My Account > Referrral
3. Send an invitation to an email address that you control

You will receive a new email with the last name being a link to a potentially malicious site.

Consequences

This permits users to send malicious/phishing links to potential clients. It could also have an effect on how spam filters treat algolia.com emails.