Is Whiteboard safe?

Medium risk

Whiteboard inserts Heroku-hosted story media and link fields into UTD Blackboard pages without sanitizing them.

When the optional Stories feature is enabled, Whiteboard fetches story data from whiteboard-stories.herokuapp.com on the elearning.utdallas.edu home page. The returned media, link, and link text fields are written into the page's story viewer HTML, so the story service controls content and links rendered inside Blackboard.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Sunny Guanv1.3.6Chrome Web Store
40Risk
Who publishes it

Sunny Guan - no other listings under this identity, 1 shared hostname

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Sunny Guan

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

pinclipart.com
Also called by 1 other listing: APM Music Audio & Video Editor By MatchTune

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.3.6. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Store data in your browser

    storage

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed Whiteboard contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • whiteboard-stories.herokuapp.com

    Whiteboard sends data to whiteboard-stories.herokuapp.com. No other extension we have analysed sends data here.

Updated 30 September 2026hgoiijmhpdjkmecnlkpdcflgfjebpbhe