How I Accidentally Discovered an Insecure Direct Object Reference (IDOR) Vulnerability on Coursera

Hello, hackers!

In this article, I want to tell you a story on how I accidentally discovered an IDOR vulnerability on Coursera’s programs while I was also learning and trying to get the GCP (Google Cybersecurity Certificate) for fun.

A little bit of background about Coursera

Coursera is a for-profit U.S.-based global massive open online course provider founded in 2012 by Stanford University computer science professors Andrew Ng and Daphne Koller. Coursera works with universities and other organizations to offer …

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