Is Cornerstone Guide Player safe?

Unknown risk

Cornerstone Guide Player exposes a credentialed SSO fetch proxy and an unguarded HTML-injection point to any web page.

EdCastv2026.1.7Chrome Web Store
0Risk

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

Publishers can request a review.

Updated 17 June 2026fgadldooeamdpekomjcdfgofahnplbde